Category Clash
A fast online categories game where players race the clock, challenge answers, earn achievements, and build a cosmetic collection.
- Role
- Product Design & Full-Stack Development
- Timeline
- Ongoing
- Platform
- Android · Online Multiplayer
Overview
Category Clash turns the familiar countries-and-cities word game into a quick online competition. Every round gives the room one letter and a shared set of categories, then asks players to find valid answers before the timer runs out.
I designed and built the product end to end: real-time rooms, answer validation, scoring, achievements, Coins, avatars, stickers, profile banners, and the visual identity surrounding the game.
Key decisions
- 01
Made the server authoritative for room state, scoring, rewards, wallet balances, cosmetic ownership, and purchase fulfillment so modified clients cannot grant themselves progress.
- 02
Designed short round and results loops around mobile play, with reconnect handling, duplicate-action protection, answer challenges, and clear feedback when a room changes state.
- 03
Kept Coins cosmetic-only: players earn them through completed online games and achievements, then spend them on permanent avatars, stickers, and country banners.
- 04
Built a playful identity around opposing category brackets and a central letter tile, carrying the same purple, coral, yellow, and mint system through the app icon, store, profiles, and game website.
Outcome
Produced a signed Android release build and a tested multiplayer foundation backed by Supabase and PostgreSQL.
Prepared the product for Google Play with server-verified billing boundaries, privacy and account-deletion flows, and a dedicated public game site. The first public release is currently in development.