Design install and browser modes
For a game product manager, this catalog design prototype should make every player action and result the player can inspect easy to evaluate. Write how to define item identity, value, Koin price, preview, and ownership before checkout. Define the player need, item scope, ownership rule, Koin price, and free path. Check age context, accessibility, rights, and platform expectations. Try the flow in a regular tab and an installed presentation. Navigation, focus, and recovery should remain understandable even when browser controls are reduced or the app resumes from suspension.
Treat offline state explicitly
An unavailable connection must not look like a completed purchase. Explain when the action cannot continue, preserve the game state, and provide a safe retry after connectivity returns.
Do not imply native entitlement
PWA installation does not create platform IAP ownership. Durable identity, cross-device state, refunds, billing integration, and app-store policy remain outside the browser prototype.
Write the decision before the feature
State which player problem the item addresses, why a purchase is appropriate, and what evidence would cause the team to drop the idea. The prototype supports a product decision; it does not forecast revenue.
Compare free and owned journeys
Ask testers to complete the same goal with and without the item. Look for comprehension, pressure, fairness, and delivered value rather than using purchase completion as the only measure of a good experience.
Set the release boundary
Review age context, accessibility, localization, rights, moderation, platform policy, refunds, support, and security with the responsible owners. Keep unverified native capabilities and financial reporting out of the public promise.
Compare items consistently
Use the same fields for every offer: preview, benefit, ownership or duration, precise Koin price, and owned state. Consistent cards make differences easier to understand. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.
Keep the first catalog small
Start with one to three clearly different items. A large grid makes it harder to find unclear value, duplicated promises, and missing delivery states. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.
Design owned and unavailable states
A catalog also needs sold, owned, equipped, and unavailable presentations. Do not leave a purchased item looking buyable after reload. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.