About BlinkSum

The Game

BlinkSum is a fast-paced real-time multiplayer card game in the classic bell-racing party tradition. Up to four players compete to spot when card sums reach 5 and ring the bell first.

Four Card Types

• Gold — Always visible. The stable, classic card.
• Gem — Flashes briefly, then vanishes. Tests your memory.
• Ice — Slowly melts each turn, losing value until it's gone.
• Prism — The wildcard. Its value lifts symbols that already have a card on the field.

Why BlinkSum?

Traditional card games are static. BlinkSum adds a twist — cards that change, disappear, or boost others — making every round a fresh challenge of speed, memory, and strategy.

Technology

Built with React, TypeScript, and Kotlin/Ktor. Real-time multiplayer powered by WebSocket with server-synced timing to keep matches fair across different network conditions.

Free to Play

BlinkSum is free and open to anyone. No sign-up, no downloads — just jump in and play.

Contact

Questions, feedback, or bug reports? Email hyeonukkim1990@gmail.com