Separate sponsorship from gameplay advantage
Label branded cosmetics or campaign content accurately, review trademark and artwork permission, and avoid implying endorsement beyond the approved scope. Confirm that a sponsored item remains optional, visually clear, and unable to distort competitive outcomes or ordinary access.
Run a price-comprehension check
Give a new player the offer without explanation and ask them to name the selected item, full Koin amount, available balance, expected balance afterward, quantity or duration, and ownership rule. Let them decline, then repeat with insufficient Koin and a successful choice. Review every place the value appears and remove crossed-out amounts, vague premium labels, unsupported real-currency comparisons, or urgency that distracts from the final cost. The wording on the preview, confirmation, success message, and owned view must describe the same thing. Reopen the game and verify that the balance and ownership shown to the player still match the one transaction they approved.
Keep price and balance together
Place the exact Koin amount beside the visible Koin balance and show the expected remaining balance before the player confirms. For brand and campaign teams, the experience must separate sponsored cosmetics from gameplay power and review trademark rights.
Explain duration and ownership
State whether the item is permanent, consumed on use, limited by quantity, or active for a fixed time. For brand and campaign teams, the experience must separate sponsored cosmetics from gameplay power and review trademark rights.
Remove misleading price signals
Avoid fake urgency, crossed-out prices, unsupported currency comparisons, and labels that hide the final Koin amount. For brand and campaign teams, the experience must separate sponsored cosmetics from gameplay power and review trademark rights.