Use it as a design reference
For a technical producer, this purchase confirmation prototype should make every player action and result shown in the game easy to evaluate. Write how to show the exact item, Koin amount, balance impact, and explicit confirm/cancel actions. Map preview, confirmation, a cancelled choice, a Koin shortage, pending, success, delivery, owned, and reload. Give every failure a safe next action. Validate item value, wording, state order, and player recovery in the browser before translating behavior into Unity scenes, prefabs, services, and platform-specific implementation tasks.
Write the Unity handoff separately
Identify UI states, game-state ownership, durable entitlements, native billing adapters, security, refunds, and test environments. The playable page does not configure Unity IAP or produce a store build.
Compare the later implementation
When a Unity version exists, replay the same cancel, insufficient Koin, interruption, success, delivery, and reopen scenarios. Match player outcomes rather than copying browser code or assuming parity.
Name every state and owner
Separate preview, confirmation, pending, success, delivery, owned, insufficient Koin, cancel, interrupted, and reopened states. Assign later production work for identity, persistence, native billing, security, refunds, policy, and monitoring.
Define idempotent recovery
Repeated confirmation, a slow response, navigation during delivery, and reopening must resolve to one result. Record which state is authoritative and how the player can safely retry without another grant or Koin deduction.
Turn the prototype into tickets
Capture the visible behavior first, then create implementation tasks with expected examples for each transition and platform boundary. Do not translate a working browser interaction into an unsupported claim that backend commerce is complete.
Repeat the complete choice
The confirmation should repeat the selected item, exact Koin amount, available Koin balance, remaining balance, and ownership rule without introducing a different offer. Test that behavior using Unity prototype teams. SEELE does not claim to configure Unity IAP or ship a native Unity store build from this page.
Separate confirm from cancel
Use distinct actions with clear labels and enough spacing for the target input method. Returning to the game should never spend Koin. Test that behavior using Unity prototype teams. SEELE does not claim to configure Unity IAP or ship a native Unity store build from this page.
Prevent repeated confirmation
After confirmation, show a pending state and disable repeated input until the result is known. A slow response should not create duplicate grants. Test that behavior using Unity prototype teams. SEELE does not claim to configure Unity IAP or ship a native Unity store build from this page.