diff --git a/go/cmd/bd2server/main.go b/go/cmd/bd2server/main.go
index 31cf0e9..18e6218 100644
--- a/go/cmd/bd2server/main.go
+++ b/go/cmd/bd2server/main.go
@@ -786,6 +786,14 @@ func serve(args []string) (serveErr error) {
 	if err := cashService.AttachShopSeed(serverConfig); err != nil {
 		return fmt.Errorf("attach cash product availability: %w", err)
 	}
+	cashBonusDesign, err := gamedata.LoadCashBonusCatalog(gameData, *gameDataVersion)
+	if err != nil {
+		return fmt.Errorf("load cash bonus design: %w", err)
+	}
+	cashBonuses, err := commerce.NewCashBonuses(gameplayStore, cashEconomy, cashService, cashBonusDesign, cashDesign.Packages)
+	if err != nil {
+		return fmt.Errorf("load cash bonus claims: %w", err)
+	}
 	cashService.AttachLegacyCounts(gachaService)
 	cashService.AttachDelegate(func(key gamedata.CashProductKey, request []byte) ([]byte, bool, error) {
 		known := key.GroupID == infiniteGacha.ProductGroupID && key.ProductID == infiniteGacha.ProductID && key.SaleGroup == infiniteGacha.SaleGroup
@@ -1034,6 +1042,7 @@ func serve(args []string) (serveErr error) {
 	eventTasksService.AttachGameplayProvider(worldService.GameplayAchievementProvider(achievementCounterDesign, achievementGrades))
 	game, err := session.NewServerWithProgress(login, progressState,
 		cashService,
+		cashBonuses,
 		clearPackages,
 		commerce.PackInfoHandler{World: worldService, Claims: clearPackages},
 		commerce.AttendanceHandler{Events: eventTasksService, Economy: cashEconomy, LoginPasses: loginPasses, Store: gameplayStore},
diff --git a/go/internal/server/commerce/bonuses.go b/go/internal/server/commerce/bonuses.go
new file mode 100644
index 0000000..1e6b64c
--- /dev/null
+++ b/go/internal/server/commerce/bonuses.go
@@ -0,0 +1,216 @@
+package commerce
+
+import (
+	"bd2server/internal/server/gamedata"
+	"bd2server/internal/server/stateio"
+	"bd2server/internal/server/wire"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"math"
+	"sort"
+	"sync"
+)
+
+type bonusGroup struct{ ProductGroup, ContentsGroup uint64 }
+type bonusPurchases interface {
+	LifetimePurchaseTotal([]gamedata.CashProductKey) (uint64, error)
+}
+type bonusState struct {
+	Claims   map[string]bool            `json:"claims"`
+	Receipts map[string]purchaseReceipt `json:"receipts"`
+}
+type CashBonuses struct {
+	mu       sync.Mutex
+	store    stateio.Store
+	economy  Economy
+	counts   bonusPurchases
+	groups   map[bonusGroup][]gamedata.CashProductKey
+	rewards  map[bonusGroup][]gamedata.CashBonusReward
+	ordered  []bonusGroup
+	claimIDs map[string]bool
+}
+
+func bonusClaimID(group bonusGroup, id uint64) string {
+	return fmt.Sprintf("%d:%d:%d", group.ProductGroup, group.ContentsGroup, id)
+}
+
+func NewCashBonuses(store stateio.Store, economy Economy, counts bonusPurchases, design *gamedata.CashBonusCatalog, packages []gamedata.CashPackageDesign) (*CashBonuses, error) {
+	if store == nil || economy == nil || counts == nil || design == nil {
+		return nil, fmt.Errorf("commerce: missing cash bonus dependency")
+	}
+	s := &CashBonuses{store: store, economy: economy, counts: counts, groups: map[bonusGroup][]gamedata.CashProductKey{}, rewards: map[bonusGroup][]gamedata.CashBonusReward{}, claimIDs: map[string]bool{}}
+	seen := map[gamedata.CashProductKey]bool{}
+	for _, p := range packages {
+		// EPackages.BonusBundleGroup=8; unrelated packages can reuse a contents ID.
+		if p.PackageType != 8 || len(design.Groups[p.ContentsGroupID]) == 0 {
+			continue
+		}
+		k := gamedata.CashProductKey{GroupID: p.GroupID, ProductID: p.ID, SaleGroup: p.SaleGroup}
+		if seen[k] {
+			return nil, fmt.Errorf("commerce: duplicate cash bonus product %+v", k)
+		}
+		seen[k] = true
+		group := bonusGroup{p.GroupID, p.ContentsGroupID}
+		s.groups[group] = append(s.groups[group], k)
+		s.rewards[group] = design.Groups[p.ContentsGroupID]
+	}
+	for group, rows := range s.rewards {
+		s.ordered = append(s.ordered, group)
+		for _, row := range rows {
+			s.claimIDs[bonusClaimID(group, row.ID)] = true
+		}
+	}
+	sort.Slice(s.ordered, func(i, j int) bool {
+		if s.ordered[i].ProductGroup != s.ordered[j].ProductGroup {
+			return s.ordered[i].ProductGroup < s.ordered[j].ProductGroup
+		}
+		return s.ordered[i].ContentsGroup < s.ordered[j].ContentsGroup
+	})
+	_, err := s.load()
+	return s, err
+}
+
+func (s *CashBonuses) load() (bonusState, error) {
+	v := bonusState{Claims: map[string]bool{}, Receipts: map[string]purchaseReceipt{}}
+	raw, err := s.store.Load("commerce_cash_bonuses")
+	if err != nil || raw == nil {
+		return v, err
+	}
+	if err = stateio.RequireExactJSONObject(raw, "claims", "receipts"); err != nil {
+		return v, err
+	}
+	if err = json.Unmarshal(raw, &v); err != nil {
+		return v, err
+	}
+	if v.Claims == nil || v.Receipts == nil {
+		return v, fmt.Errorf("commerce: malformed cash bonus state")
+	}
+	for id, claimed := range v.Claims {
+		if !claimed || !s.claimIDs[id] {
+			return v, fmt.Errorf("commerce: invalid cash bonus claim %s", id)
+		}
+	}
+	for id, r := range v.Receipts {
+		digest, err := hex.DecodeString(r.Digest)
+		if id == "" || err != nil || len(digest) != sha256.Size || len(r.Response) == 0 {
+			return v, fmt.Errorf("commerce: invalid cash bonus receipt")
+		}
+	}
+	return v, nil
+}
+
+func (s *CashBonuses) rewarded(v bonusState, group bonusGroup, field int) []byte {
+	var out []byte
+	for _, row := range s.rewards[group] {
+		if v.Claims[bonusClaimID(group, row.ID)] {
+			out = wire.AppendVarint(out, field, row.ID)
+		}
+	}
+	return out
+}
+
+func (s *CashBonuses) Handle(path string, request []byte) (int, []byte, bool, error) {
+	return s.HandleSession(path, request, "")
+}
+
+func (s *CashBonuses) HandleSession(path string, request []byte, session string) (int, []byte, bool, error) {
+	code := 588
+	if path == "/CashBonusReward" {
+		code = 589
+	} else if path != "/CashBonusInfo" {
+		return 0, nil, false, nil
+	}
+	seq, present, err := wire.Varint(request, 1)
+	if err != nil || !present || seq == 0 || seq > math.MaxInt32 {
+		return code, nil, true, fmt.Errorf("commerce: invalid cash bonus sequence")
+	}
+	if err = wire.Walk(request, func(wire.Field) error { return nil }); err != nil {
+		return code, nil, true, err
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	v, err := s.load()
+	if err != nil {
+		return code, nil, true, err
+	}
+	if path == "/CashBonusInfo" {
+		var out []byte
+		for _, group := range s.ordered {
+			n, err := s.counts.LifetimePurchaseTotal(s.groups[group])
+			if err != nil {
+				return code, nil, true, err
+			}
+			// Preserve the native empty response for groups with no purchases.
+			if n == 0 {
+				continue
+			}
+			b := wire.AppendVarint(nil, 1, group.ProductGroup)
+			b = wire.AppendVarint(b, 2, group.ContentsGroup)
+			b = wire.AppendVarint(b, 3, n)
+			b = append(b, s.rewarded(v, group, 4)...)
+			out = wire.AppendBytes(out, 1, b)
+		}
+		return code, out, true, nil
+	}
+	if session == "" {
+		return code, nil, true, fmt.Errorf("commerce: cash bonus session unavailable")
+	}
+	identity := fmt.Sprintf("cash-bonus:%x:%d", sha256.Sum256([]byte(session)), seq)
+	digest := fmt.Sprintf("%x", sha256.Sum256(request))
+	if receipt, ok := v.Receipts[identity]; ok {
+		if receipt.Digest != digest {
+			return code, nil, true, fmt.Errorf("commerce: conflicting cash bonus replay")
+		}
+		return code, append([]byte(nil), receipt.Response...), true, nil
+	}
+	groupID, _, err := wire.Varint(request, 2)
+	if err != nil {
+		return code, nil, true, err
+	}
+	contents, _, err := wire.Varint(request, 3)
+	if err != nil {
+		return code, nil, true, err
+	}
+	id, _, err := wire.Varint(request, 4)
+	if err != nil {
+		return code, nil, true, err
+	}
+	group := bonusGroup{groupID, contents}
+	var chosen *gamedata.CashBonusReward
+	for _, row := range s.rewards[group] {
+		if row.ID == id {
+			copy := row
+			chosen = &copy
+			break
+		}
+	}
+	if chosen == nil {
+		return code, nil, true, fmt.Errorf("commerce: unknown cash bonus group=%d contents=%d bonus=%d", groupID, contents, id)
+	}
+	n, err := s.counts.LifetimePurchaseTotal(s.groups[group])
+	if err != nil {
+		return code, nil, true, err
+	}
+	if n < chosen.RequireCount {
+		return code, nil, true, fmt.Errorf("commerce: cash bonus purchase threshold not reached group=%d contents=%d bonus=%d count=%d require=%d", groupID, contents, id, n, chosen.RequireCount)
+	}
+	claimID := bonusClaimID(group, id)
+	var bundle []byte
+	if !v.Claims[claimID] {
+		bundle, err = s.economy.Apply("cash-bonus-grant:"+claimID, nil, []gamedata.Reward{chosen.Reward})
+		if err != nil {
+			return code, nil, true, err
+		}
+		v.Claims[claimID] = true
+	}
+	response := wire.AppendBytes(nil, 1, bundle)
+	response = append(response, s.rewarded(v, group, 2)...)
+	v.Receipts[identity] = purchaseReceipt{Digest: digest, Response: response}
+	raw, err := json.Marshal(v)
+	if err == nil {
+		err = s.store.Save("commerce_cash_bonuses", raw)
+	}
+	return code, response, true, err
+}
diff --git a/go/internal/server/commerce/bonuses_test.go b/go/internal/server/commerce/bonuses_test.go
new file mode 100644
index 0000000..13638b6
--- /dev/null
+++ b/go/internal/server/commerce/bonuses_test.go
@@ -0,0 +1,114 @@
+package commerce
+
+import (
+	"bd2server/internal/server/gamedata"
+	"bd2server/internal/server/wire"
+	"bytes"
+	"testing"
+)
+
+func bonusRequest(seq, group, contents, bonus uint64) []byte {
+	b := wire.AppendVarint(nil, 1, seq)
+	b = wire.AppendVarint(b, 2, group)
+	b = wire.AppendVarint(b, 3, contents)
+	return wire.AppendVarint(b, 4, bonus)
+}
+
+func TestCashBonusUsesCommittedSeriesPurchasesAndNativeClaimProtocol(t *testing.T) {
+	shop, eco, store := serviceFixture(t, 1)
+	packages := []gamedata.CashPackageDesign{
+		{GroupID: 2, ID: 1, PackageType: 8, ContentsGroupID: 7},
+		{GroupID: 2, ID: 1, SaleGroup: 1, PackageType: 8, ContentsGroupID: 7},
+		// Another package kind can reuse contents=7 but must not count.
+		{GroupID: 1, ID: 1, PackageType: 3, ContentsGroupID: 7},
+	}
+	design := &gamedata.CashBonusCatalog{Groups: map[uint64][]gamedata.CashBonusReward{
+		7: {{ID: 1, RequireCount: 2, Reward: gamedata.Reward{Type: 8, ID: 1000, Count: 2}}, {ID: 2, RequireCount: 3, Reward: gamedata.Reward{Type: 8, ID: 1000, Count: 15}}},
+	}}
+	s, err := NewCashBonuses(store, eco, shop, design, packages)
+	if err != nil {
+		t.Fatal(err)
+	}
+	infoRequest := wire.AppendVarint(nil, 1, 1)
+	if code, info, handled, err := s.Handle("/CashBonusInfo", infoRequest); err != nil || code != 588 || !handled || len(info) != 0 {
+		t.Fatal("new account bonus info must be empty", code, info, err)
+	}
+	claim := bonusRequest(1, 2, 7, 1)
+	if _, _, _, err := s.HandleSession("/CashBonusReward", claim, "s"); err == nil || eco.calls != 0 {
+		t.Fatal("unearned bonus granted")
+	}
+	for seq, sale := range []uint64{0, 1} {
+		if _, _, _, err := shop.HandleSession("/CashShopBuy", buyRequest(uint64(seq+1), 2, 1, sale, ""), "s"); err != nil {
+			t.Fatal(err)
+		}
+	}
+	// Normal recharge is not a member of the bonus series.
+	if _, _, _, err := shop.HandleSession("/CashShopBuy", buyRequest(3, 1, 1, 0, ""), "s"); err != nil {
+		t.Fatal(err)
+	}
+	_, info, _, err := s.Handle("/CashBonusInfo", infoRequest)
+	if err != nil {
+		t.Fatal(err)
+	}
+	row, present, _ := wire.Bytes(info, 1)
+	count, _, _ := wire.Varint(row, 3)
+	if !present || count != 2 {
+		t.Fatal("incorrect committed series purchase count", count)
+	}
+	calls := eco.calls
+	code, reply, handled, err := s.HandleSession("/CashBonusReward", claim, "s")
+	if err != nil || code != 589 || !handled || eco.calls != calls+1 || len(eco.rewards) != 1 || eco.rewards[0].Count != 2 || len(eco.costs) != 0 {
+		t.Fatal("earned bonus not granted through native protocol", code, err, eco.rewards)
+	}
+	if id, _, _ := wire.Varint(reply, 2); id != 1 {
+		t.Fatal("native rewarded ID list missing")
+	}
+	reopened, err := NewCashBonuses(store, eco, shop, design, packages)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, replay, _, err := reopened.HandleSession("/CashBonusReward", claim, "s")
+	if err != nil || !bytes.Equal(reply, replay) || eco.calls != calls+1 {
+		t.Fatal("restart replay duplicated bonus", err)
+	}
+	_, noOp, _, err := reopened.HandleSession("/CashBonusReward", bonusRequest(2, 2, 7, 1), "s")
+	bundle, present, _ := wire.Bytes(noOp, 1)
+	if err != nil || !present || len(bundle) != 0 || eco.calls != calls+1 {
+		t.Fatal("fresh duplicate must return empty grant with claimed IDs", err)
+	}
+	for _, request := range [][]byte{bonusRequest(1, 2, 7, 2), bonusRequest(4, 1, 7, 1), bonusRequest(5, 2, 7, 99), bonusRequest(6, 2, 7, 2)} {
+		if _, _, _, err := reopened.HandleSession("/CashBonusReward", request, "s"); err == nil || eco.calls != calls+1 {
+			t.Fatal("conflicting replay, wrong series or unmet bonus accepted")
+		}
+	}
+	_, info, _, err = reopened.Handle("/CashBonusInfo", infoRequest)
+	row, _, _ = wire.Bytes(info, 1)
+	if id, _, _ := wire.Varint(row, 4); err != nil || id != 1 {
+		t.Fatal("claimed IDs missing after restart", err)
+	}
+}
+
+func TestCashBonusFailedGrantDoesNotMarkClaimed(t *testing.T) {
+	shop, eco, store := serviceFixture(t, 0)
+	if _, _, _, err := shop.HandleSession("/CashShopBuy", buyRequest(1, 2, 1, 0, ""), "s"); err != nil {
+		t.Fatal(err)
+	}
+	design := &gamedata.CashBonusCatalog{Groups: map[uint64][]gamedata.CashBonusReward{7: {{ID: 1, RequireCount: 1, Reward: gamedata.Reward{Type: 8, ID: 1000, Count: 2}}}}}
+	s, err := NewCashBonuses(store, eco, shop, design, []gamedata.CashPackageDesign{{GroupID: 2, ID: 1, PackageType: 8, ContentsGroupID: 7}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	eco.fail = true
+	request := bonusRequest(1, 2, 7, 1)
+	if _, _, _, err := s.HandleSession("/CashBonusReward", request, "s"); err == nil {
+		t.Fatal("failed grant accepted")
+	}
+	v, err := s.load()
+	if err != nil || len(v.Claims) != 0 || len(v.Receipts) != 0 {
+		t.Fatal("failed grant marked bonus claimed", err)
+	}
+	eco.fail = false
+	if _, _, _, err := s.HandleSession("/CashBonusReward", request, "s"); err != nil {
+		t.Fatal("failed grant could not be retried", err)
+	}
+}
diff --git a/go/internal/server/commerce/installed_audit_test.go b/go/internal/server/commerce/installed_audit_test.go
new file mode 100644
index 0000000..1f2e2c7
--- /dev/null
+++ b/go/internal/server/commerce/installed_audit_test.go
@@ -0,0 +1,255 @@
+package commerce
+
+import (
+	"bd2server/internal/server/calendar"
+	"bd2server/internal/server/events"
+	"bd2server/internal/server/gameconfig"
+	"bd2server/internal/server/gamedata"
+	"bd2server/internal/server/hunting"
+	"bd2server/internal/server/player"
+	"bd2server/internal/server/readonly"
+	"bd2server/internal/server/stateio"
+	"bd2server/internal/server/wire"
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestInstalledCashProductRewardCoverage23510(t *testing.T) {
+	root := os.Getenv("BD2_REAL_GAMEDATA")
+	if root == "" {
+		t.Skip("BD2_REAL_GAMEDATA not configured")
+	}
+	catalog, err := gamedata.LoadCashCatalog(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	resolver, err := gamedata.LoadCashRewardResolver(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	entitlements, err := gamedata.LoadCashEntitlementDesign(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	// Infinite draw products grant the user's confirmed preview, rather than
+	// the placeholder cash box. Validate their dedicated design and route.
+	db, release, err := gamedata.OpenDatabase(root, "20260923193640", "common")
+	if err != nil {
+		t.Fatal(err)
+	}
+	rowsDB, err := db.Query("SELECT id,ProtoBuf FROM GachaGroupTable")
+	if err != nil {
+		release()
+		t.Fatal(err)
+	}
+	type drawGroup struct{ id, gacha uint64 }
+	var groups []drawGroup
+	for rowsDB.Next() {
+		var id uint64
+		var raw []byte
+		if err := rowsDB.Scan(&id, &raw); err != nil {
+			t.Fatal(err)
+		}
+		typ, _, _ := wire.Varint(raw, 17)
+		sub, _, _ := wire.Varint(raw, 16)
+		if typ == 1 && sub == 5 {
+			gacha, _, _ := wire.Varint(raw, 33)
+			groups = append(groups, drawGroup{id, gacha})
+		}
+	}
+	if err := rowsDB.Err(); err != nil {
+		t.Fatal(err)
+	}
+	rowsDB.Close()
+	release()
+	policy, err := NewCatalog("2.35.10", catalog, gameconfig.Default().Purchases)
+	if err != nil {
+		t.Fatal(err)
+	}
+	shop, err := NewService(policy, stateio.NewMemory(), &purchaseEconomy{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	seed, err := readonly.Load(filepath.Join("..", "..", "..", "seed", "v2_35_10", "readonly.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	calendars, err := calendar.LoadDirectory(filepath.Join("..", "..", "..", "..", "schedules"), "2.35.10", "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	seed, err = calendars.ApplyReadonly(seed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	shop.SetClock(func() time.Time { return time.Date(2026, 10, 5, 5, 0, 0, 0, time.UTC) }, 0)
+	if err := shop.AttachShopSeed(seed); err != nil {
+		t.Fatal(err)
+	}
+	graph, err := gamedata.LoadRewardGraph(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	costumes, err := gamedata.LoadRewardCostumeCatalog(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	equipment, err := gamedata.LoadRewardEquipmentCatalog(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	skins, err := gamedata.LoadPrestigeSkins(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	ownedDesign, err := gamedata.LoadOwnedEventItemDesign(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	newEconomy := func() (*EntitlementEconomy, *player.Wallet) {
+		store := stateio.NewMemory()
+		items, err := player.OpenInventory(store, &player.Starter{Version: "2.35.10"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		wallet, err := player.OpenWallet(store, player.Currency{Jewelry: 100000000, FreeJewelry: 100000000, Gold: 100000000})
+		if err != nil {
+			t.Fatal(err)
+		}
+		collection, err := player.OpenCollectionStore(store, nil)
+		if err != nil {
+			t.Fatal(err)
+		}
+		ownedEquipment, err := player.OpenEquipmentInventory(store)
+		if err != nil {
+			t.Fatal(err)
+		}
+		for _, persist := range []func() error{items.EnsurePersisted, wallet.EnsurePersisted, collection.EnsurePersisted, ownedEquipment.EnsurePersisted} {
+			if err := persist(); err != nil {
+				t.Fatal(err)
+			}
+		}
+		base, err := events.NewEconomy(store, items, wallet, collection, ownedEquipment, costumes, equipment, graph, nil)
+		if err != nil {
+			t.Fatal(err)
+		}
+		base.AttachPrestigeSkins(skins)
+		base.AttachOwnedItemDesign(ownedDesign)
+		ap, err := hunting.Open(store, root, "20260923193640", items, wallet, func() (int, error) { return 21, nil }, 0, 0)
+		if err != nil {
+			t.Fatal(err)
+		}
+		base.AttachHuntingAP(ap)
+		e, err := NewEntitlementEconomy(store, base, resolver, items, entitlements)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return e, wallet
+	}
+	delegated := map[gamedata.CashProductKey]bool{}
+	retired := map[gamedata.CashProductKey]bool{}
+	for _, group := range groups {
+		d, err := gamedata.LoadInfiniteGachaForSchedules(root, "20260923193640", []uint64{group.id})
+		if err != nil && strings.Contains(err.Error(), "infinite cash product missing") {
+			// Early infinite draws retain placeholder gold/count=0 boxes in this
+			// version. They are historical timed products, not grantable purchases.
+			found := false
+			for _, p := range catalog.Products {
+				if p.Key.ProductID != group.gacha {
+					continue
+				}
+				found = true
+				if p.TimeLimitType == 0 || shop.IsAvailable(p.Key) {
+					t.Fatalf("retired infinite product %+v is purchasable without a valid preview design", p.Key)
+				}
+				retired[p.Key] = true
+			}
+			if !found {
+				t.Fatalf("infinite group=%d has no matching retired product", group.id)
+			}
+			continue
+		}
+		if err != nil || d == nil || d.Count == 0 {
+			t.Fatalf("infinite draw group=%d cannot grant confirmed preview: %v", group.id, err)
+		}
+		delegated[gamedata.CashProductKey{GroupID: d.ProductGroupID, ProductID: d.ProductID, SaleGroup: d.SaleGroup}] = true
+	}
+	cash, recharge, delegateCount, retiredCount := 0, 0, 0, 0
+	for _, p := range catalog.Products {
+		if p.PriceType != 1 {
+			continue
+		}
+		cash++
+		if p.Recharge {
+			recharge++
+		}
+		if delegated[p.Key] {
+			delegateCount++
+			continue
+		}
+		if retired[p.Key] {
+			retiredCount++
+			continue
+		}
+		if p.RandomBoxID == 0 {
+			t.Errorf("cash product %+v has no reward box", p.Key)
+			continue
+		}
+		for _, box := range []uint64{p.RandomBoxID, p.BonusRandomBoxID} {
+			if box == 0 {
+				continue
+			}
+			leaves, err := resolver.ResolveGranted([]gamedata.BattleReward{{Type: 9, ID: box, Count: 1}})
+			if err != nil || len(leaves) == 0 {
+				t.Errorf("cash product %+v box=%d cannot grant rewards: %v", p.Key, box, err)
+				continue
+			}
+			for _, r := range leaves {
+				if r.Type == 19 && entitlements.TicketTypes[r.ID] == 0 || r.Type == 62 && !entitlements.AvatarSets[r.ID] {
+					t.Errorf("cash product %+v has unknown entitlement %+v", p.Key, r)
+				}
+			}
+		}
+		// Exercise the same grant and debit modules used by CashShopBuy against
+		// isolated in-memory accounts; no real save or authenticated API is touched.
+		q, err := policy.Quote(p.Key, 1)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var costs []gamedata.Reward
+		if q.Cost > 0 {
+			costs = []gamedata.Reward{{Type: q.ItemType, Count: q.Cost}}
+		}
+		rewards := []gamedata.Reward{{Type: 9, ID: p.RandomBoxID, Count: 1}}
+		if p.BonusRandomBoxID != 0 {
+			rewards = append(rewards, gamedata.Reward{Type: 9, ID: p.BonusRandomBoxID, Count: 1})
+		}
+		e, wallet := newEconomy()
+		bundle, err := e.Apply("installed-audit", costs, rewards)
+		if err != nil || len(bundle) == 0 {
+			t.Errorf("cash product %+v failed real debit/grant: %v", p.Key, err)
+			continue
+		}
+		balance := wallet.Snapshot()
+		replay, err := e.Apply("installed-audit", costs, rewards)
+		if err != nil || !bytes.Equal(replay, bundle) || wallet.Snapshot() != balance {
+			t.Errorf("cash product %+v replay repeated debit/grant: %v", p.Key, err)
+		}
+	}
+	if cash != 614 || recharge != 14 || delegateCount != 3 || retiredCount != 5 {
+		t.Fatalf("cash coverage changed: cash=%d recharge=%d delegated=%d retired=%d", cash, recharge, delegateCount, retiredCount)
+	}
+	bonus, err := gamedata.LoadCashBonusCatalog(root, "20260923193640")
+	if err != nil {
+		t.Fatal(err)
+	}
+	rows := bonus.Groups[1]
+	if len(rows) != 3 || rows[0].RequireCount != 2 || rows[0].Reward.Count != 2 || rows[1].RequireCount != 6 || rows[1].Reward.Count != 15 || rows[2].RequireCount != 8 || rows[2].Reward.Count != 30 {
+		t.Fatalf("cash bonus thresholds or rewards changed: %+v", rows)
+	}
+	t.Logf("validated %d cash rows: %d recharge variants, %d preview designs, %d unavailable historical draws; checked other reward boxes and typed ticket/skin entitlements", cash, recharge, delegateCount, retiredCount)
+}
diff --git a/go/internal/server/commerce/service.go b/go/internal/server/commerce/service.go
index cfb5a27..976ff7b 100644
--- a/go/internal/server/commerce/service.go
+++ b/go/internal/server/commerce/service.go
@@ -651,6 +651,26 @@ func (s *Service) purchaseCountDBInfos() ([][]byte, error) {
 	return out, nil
 }
 func (s *Service) PurchaseCountDBInfos() [][]byte { v, _ := s.purchaseCountDBInfos(); return v }
+
+// LifetimePurchaseTotal derives cumulative bonuses from committed purchases,
+// including previous reset periods, without keeping a second purchase counter.
+func (s *Service) LifetimePurchaseTotal(keys []gamedata.CashProductKey) (uint64, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	v, err := s.load()
+	if err != nil {
+		return 0, err
+	}
+	var total uint64
+	for _, k := range keys {
+		n := v.Counts[skuKey(k)].Lifetime
+		if n > math.MaxInt32-total {
+			return 0, fmt.Errorf("commerce: bonus purchase count overflow")
+		}
+		total += n
+	}
+	return total, nil
+}
 func (s *Service) HasPurchased(k gamedata.CashProductKey) bool {
 	s.mu.Lock()
 	defer s.mu.Unlock()
diff --git a/go/internal/server/eventtasks/pass_reward_test.go b/go/internal/server/eventtasks/pass_reward_test.go
new file mode 100644
index 0000000..4c4d0b4
--- /dev/null
+++ b/go/internal/server/eventtasks/pass_reward_test.go
@@ -0,0 +1,157 @@
+package eventtasks
+
+import (
+	"bd2server/internal/server/gamedata"
+	"bd2server/internal/server/wire"
+	"bytes"
+	"testing"
+)
+
+func passClaimRequest(seq, rewardType uint64, all bool, level uint64) []byte {
+	b := req(seq)
+	if all {
+		b = wire.AppendVarint(b, 2, 1)
+	}
+	b = wire.AppendVarint(b, 3, 8)
+	if level != 0 {
+		b = wire.AppendVarint(b, 4, level)
+	}
+	if rewardType != 0 {
+		b = wire.AppendVarint(b, 5, rewardType)
+	}
+	return b
+}
+
+func claimPass(t *testing.T, s *Service, request []byte) []byte {
+	t.Helper()
+	code, response, handled, err := s.Handle("/PassReward", request)
+	if err != nil || code != 126 || !handled {
+		t.Fatalf("pass claim failed: code=%d handled=%t err=%v", code, handled, err)
+	}
+	if _, present, err := wire.Bytes(response, 1); err != nil || !present {
+		t.Fatalf("native receiver requires a non-null reward bundle: %x, %v", response, err)
+	}
+	return response
+}
+
+func TestPassRewardNativeOneClickAfterPurchaseAndRestart(t *testing.T) {
+	s, e, store := setup(t)
+	s.design.PassLevels[8] = []gamedata.EventPassLevel{
+		{ID: 1, NeedExp: 20, Basic: gamedata.Reward{Type: 3, Count: 1}, Premium: gamedata.Reward{Type: 4, Count: 10}},
+		{ID: 2, NeedExp: 30, Basic: gamedata.Reward{Type: 3, Count: 2}, Premium: gamedata.Reward{Type: 4, Count: 20}},
+		{ID: 3, NeedExp: 40, Basic: gamedata.Reward{Type: 3, Count: 3}, Premium: gamedata.Reward{Type: 4, Count: 30}},
+		{ID: 4, Basic: gamedata.Reward{Type: 3, Count: 4}, Premium: gamedata.Reward{Type: 4, Count: 40}},
+	}
+	s.design.PassBuys = map[uint64][]gamedata.EventPassBuy{8: {{ID: 1, Type: 1, LevelsGranted: 3, Cost: gamedata.Reward{Type: 3, Count: 1000}}}}
+	buy := wire.AppendVarint(req(1), 2, 8)
+	buy = wire.AppendVarint(buy, 3, 1)
+	if _, _, _, err := s.Handle("/PassBuy", buy); err != nil {
+		t.Fatal(err)
+	}
+
+	// PassRootUI.ReceiveAllReward sends BASIC first, then PREMIUM_1 in its callback.
+	basic := passClaimRequest(2, 0, true, 0)
+	basicReply := claimPass(t, s, basic)
+	for _, lv := range s.design.PassLevels[8] {
+		p := s.pass(s.registry.List()[2])
+		if !p.Claimed[key(lv.ID, 0)] || p.Claimed[key(lv.ID, 1)] {
+			t.Fatalf("basic phase incorrectly claimed premium at level %d", lv.ID)
+		}
+	}
+	if len(e.rewards) != 4 || e.rewards[0].Type != 3 || e.rewards[3].Count != 4 {
+		t.Fatalf("basic phase granted wrong rewards: %+v", e.rewards)
+	}
+	reopened, err := Open(store, s.design, s.registry, e)
+	if err != nil {
+		t.Fatal(err)
+	}
+	reopened.now = s.now
+	reopened.SetSession("test")
+	if replay := claimPass(t, reopened, basic); !bytes.Equal(replay, basicReply) || e.calls != 2 {
+		t.Fatal("restart replay repeated basic grants")
+	}
+	premium := passClaimRequest(3, 1, true, 0)
+	premiumReply := claimPass(t, reopened, premium)
+	if len(e.rewards) != 8 || e.rewards[4].Type != 4 || e.rewards[7].Count != 40 || e.calls != 3 {
+		t.Fatalf("premium phase granted wrong rewards: %+v", e.rewards)
+	}
+	for _, lv := range reopened.design.PassLevels[8] {
+		p := reopened.pass(reopened.registry.List()[2])
+		if !p.Claimed[key(lv.ID, 0)] || !p.Claimed[key(lv.ID, 1)] {
+			t.Fatalf("claim state incomplete at level %d", lv.ID)
+		}
+	}
+	if replay := claimPass(t, reopened, premium); !bytes.Equal(replay, premiumReply) || e.calls != 3 {
+		t.Fatal("premium replay repeated grants")
+	}
+	// A new one-click request after claiming must complete without granting again.
+	for typ := uint64(0); typ <= 1; typ++ {
+		response := claimPass(t, reopened, passClaimRequest(4+typ, typ, true, 0))
+		bundle, _, _ := wire.Bytes(response, 1)
+		if len(bundle) != 0 || e.calls != 3 || len(e.rewards) != 8 {
+			t.Fatal("already-claimed all request repeated rewards")
+		}
+	}
+}
+
+func TestPassRewardBasicAlreadyClaimedBeforePremiumPurchase(t *testing.T) {
+	s, e, _ := setup(t)
+	s.design.PassLevels[8] = []gamedata.EventPassLevel{{ID: 1, Basic: gamedata.Reward{Type: 3, Count: 5}, Premium: gamedata.Reward{Type: 4, Count: 50}}}
+	claimPass(t, s, passClaimRequest(1, 0, true, 0))
+	s.design.PassBuys = map[uint64][]gamedata.EventPassBuy{8: {{ID: 1, Type: 1, Cost: gamedata.Reward{Type: 3, Count: 1000}}}}
+	buy := wire.AppendVarint(req(2), 2, 8)
+	buy = wire.AppendVarint(buy, 3, 1)
+	if _, _, _, err := s.Handle("/PassBuy", buy); err != nil {
+		t.Fatal(err)
+	}
+	claimPass(t, s, passClaimRequest(3, 0, true, 0))
+	if len(e.rewards) != 1 || e.calls != 2 {
+		t.Fatal("empty basic phase granted again")
+	}
+	claimPass(t, s, passClaimRequest(4, 1, true, 0))
+	if len(e.rewards) != 2 || e.rewards[1].Type != 4 || e.rewards[1].Count != 50 || e.calls != 3 {
+		t.Fatalf("empty basic phase prevented premium claim: %+v", e.rewards)
+	}
+}
+
+func TestPassRewardSingleClaimsAndLockedLevels(t *testing.T) {
+	s, e, _ := setup(t)
+	s.design.PassLevels[8] = []gamedata.EventPassLevel{
+		{ID: 1, NeedExp: 20, Basic: gamedata.Reward{Type: 3, Count: 5}, Premium: gamedata.Reward{Type: 4, Count: 50}},
+		{ID: 2, Basic: gamedata.Reward{Type: 3, Count: 6}, Premium: gamedata.Reward{Type: 4, Count: 60}},
+	}
+	if _, _, _, err := s.Handle("/PassReward", passClaimRequest(1, 1, true, 0)); err == nil || e.calls != 0 {
+		t.Fatal("premium reward granted without purchase")
+	}
+	claimPass(t, s, passClaimRequest(2, 0, false, 1))
+	if len(e.rewards) != 1 || e.rewards[0].Count != 5 {
+		t.Fatal("single basic reward incorrect")
+	}
+	for _, request := range [][]byte{passClaimRequest(3, 0, false, 1), passClaimRequest(4, 0, false, 2), passClaimRequest(5, 0, false, 99), passClaimRequest(6, 2, true, 0)} {
+		if _, _, _, err := s.Handle("/PassReward", request); err == nil || e.calls != 1 {
+			t.Fatal("duplicate, locked or fabricated reward accepted")
+		}
+	}
+	s.pass(s.registry.List()[2]).Premium = true
+	claimPass(t, s, passClaimRequest(7, 1, false, 1))
+	if len(e.rewards) != 2 || e.rewards[1].Count != 50 || s.pass(s.registry.List()[2]).Claimed[key(2, 1)] {
+		t.Fatal("single premium claim changed another level")
+	}
+}
+
+func TestPassRewardKeepsCurrentNewbieStepInEveryResponse(t *testing.T) {
+	s, _, _ := setup(t)
+	d := s.design.Passes[8]
+	d.NewbieStep = 1
+	s.design.Passes[8] = d
+	s.state.NewbieStep = 1
+	s.design.PassLevels[8] = []gamedata.EventPassLevel{{ID: 1, NeedExp: 20, Basic: gamedata.Reward{Type: 3, Count: 5}}, {ID: 2, Basic: gamedata.Reward{Type: 3, Count: 6}}}
+	response := claimPass(t, s, passClaimRequest(1, 0, true, 0))
+	if scalar(response, 2) != 1 || s.state.NewbieStep != 1 {
+		t.Fatal("partial claim resets native guide step")
+	}
+	response = claimPass(t, s, passClaimRequest(2, 0, true, 0))
+	if scalar(response, 2) != 1 {
+		t.Fatal("empty phase resets native guide step")
+	}
+}
diff --git a/go/internal/server/eventtasks/service.go b/go/internal/server/eventtasks/service.go
index 7c68227..16b84fa 100644
--- a/go/internal/server/eventtasks/service.go
+++ b/go/internal/server/eventtasks/service.go
@@ -687,7 +687,10 @@ func (s *Service) handle(path string, b []byte, identity string) ([]byte, error)
 		}
 		all, id, rt := scalar(b, 2) != 0, scalar(b, 4), scalar(b, 5)
 		if rt > 1 {
-			return nil, errors.New("eventtasks: invalid pass reward kind")
+			return nil, fmt.Errorf("eventtasks: invalid pass reward kind pass=%d level=%d reward_type=%d all=%t", v.ID, id, rt, all)
+		}
+		if rt == 1 && !p.Premium {
+			return nil, fmt.Errorf("eventtasks: premium pass required pass=%d level=%d reward_type=%d all=%t", v.ID, id, rt, all)
 		}
 		var rewards []gamedata.Reward
 		var claims []string
@@ -699,34 +702,36 @@ func (s *Service) handle(path string, b []byte, identity string) ([]byte, error)
 			if !eligible || !all && lv.ID != id {
 				continue
 			}
-			for typ := uint64(0); typ <= 1; typ++ {
-				if !all && typ != rt || typ == 1 && !p.Premium {
-					continue
-				}
-				ck := key(lv.ID, typ)
-				if p.Claimed[ck] {
-					continue
-				}
-				r := lv.Basic
-				if typ == 1 {
-					r = lv.Premium
-				}
-				if r.Type > 0 && r.Count > 0 {
-					rewards = append(rewards, r)
-				}
-				claims = append(claims, ck)
+			// IsAll selects levels within RewardType. The native one-click flow
+			// sends an all-basic request followed by a separate all-premium one.
+			ck := key(lv.ID, rt)
+			if p.Claimed[ck] {
+				continue
 			}
+			r := lv.Basic
+			if rt == 1 {
+				r = lv.Premium
+			}
+			if r.Type > 0 && r.Count > 0 {
+				rewards = append(rewards, r)
+			}
+			claims = append(claims, ck)
 		}
-		if len(claims) == 0 {
-			return nil, errors.New("eventtasks: pass reward not eligible")
+		if len(claims) == 0 && !all {
+			return nil, fmt.Errorf("eventtasks: pass reward not eligible pass=%d level=%d reward_type=%d all=%t exp=%d premium=%t", v.ID, id, rt, all, p.Exp, p.Premium)
 		}
-		bundle, e := s.economy.Apply(identity, nil, rewards)
-		if e != nil {
-			return nil, e
+		var bundle []byte
+		if len(claims) > 0 {
+			bundle, e = s.economy.Apply(identity, nil, rewards)
+			if e != nil {
+				return nil, fmt.Errorf("eventtasks: pass reward grant failed pass=%d level=%d reward_type=%d all=%t: %w", v.ID, id, rt, all, e)
+			}
 		}
 		for _, k := range claims {
 			p.Claimed[k] = true
 		}
+		// An already-claimed all-basic phase must still succeed so the client
+		// can proceed to all-premium. Include a non-null empty reward bundle.
 		out := wire.AppendBytes(nil, 1, bundle)
 		if d.NewbieStep > 0 {
 			complete := true
@@ -747,8 +752,9 @@ func (s *Service) handle(path string, b []byte, identity string) ([]byte, error)
 			}
 			if complete && s.state.NewbieStep == d.NewbieStep {
 				s.state.NewbieStep++
-				out = wire.AppendVarint(out, 2, s.state.NewbieStep)
 			}
+			// The native receiver assigns this field even on an incomplete step.
+			out = wire.AppendVarint(out, 2, s.state.NewbieStep)
 		}
 		return out, nil
 	case "/PassBuy":
diff --git a/go/internal/server/feature/feature.go b/go/internal/server/feature/feature.go
index 85a485f..d5a10ad 100644
--- a/go/internal/server/feature/feature.go
+++ b/go/internal/server/feature/feature.go
@@ -22,7 +22,6 @@ var ErrInvalidRequest = errors.New("feature: invalid protobuf request")
 var emptyResponses = map[string]int{
 	"/AvatarShopWishListInfo":          470,
 	"/CafeteriaInfo":                   351,
-	"/CashBonusInfo":                   588,
 	"/CharPartnerInfo":                 65,
 	"/CommunityRewardInfo":             289,
 	"/DailyStoryInfo":                  538,
diff --git a/go/internal/server/gamedata/cash_bonuses.go b/go/internal/server/gamedata/cash_bonuses.go
new file mode 100644
index 0000000..02aab09
--- /dev/null
+++ b/go/internal/server/gamedata/cash_bonuses.go
@@ -0,0 +1,46 @@
+package gamedata
+
+import (
+	"fmt"
+	"sort"
+)
+
+type CashBonusReward struct {
+	ID, RequireCount uint64
+	Reward           Reward
+}
+
+type CashBonusCatalog struct{ Groups map[uint64][]CashBonusReward }
+
+func LoadCashBonusCatalog(root, version string) (*CashBonusCatalog, error) {
+	db, done, err := openStatDatabase(root, version)
+	if err != nil {
+		return nil, err
+	}
+	defer done()
+	d := &CashBonusCatalog{Groups: map[uint64][]CashBonusReward{}}
+	err = readCashMetadata(db, "CashBonusTable", func(raw []byte) error {
+		v, err := cashScalars(raw, 1, 2, 3, 6, 5, 4)
+		if err != nil {
+			return err
+		}
+		if v[0] == 0 || v[1] == 0 || v[2] == 0 || v[3] == 0 || v[5] == 0 {
+			return fmt.Errorf("gamedata: invalid cash bonus")
+		}
+		d.Groups[v[0]] = append(d.Groups[v[0]], CashBonusReward{v[1], v[2], Reward{Type: v[3], ID: v[4], Count: v[5]}})
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	for group, rows := range d.Groups {
+		sort.Slice(rows, func(i, j int) bool { return rows[i].ID < rows[j].ID })
+		for i, row := range rows {
+			if i > 0 && row.ID == rows[i-1].ID {
+				return nil, fmt.Errorf("gamedata: duplicate cash bonus group=%d id=%d", group, row.ID)
+			}
+		}
+		d.Groups[group] = rows
+	}
+	return d, nil
+}