I’ve developed a brand new reaction concept and my game, REAkT was recently published. It really tests your reflexes but also tricks the brain. It’s easy to play but very difficult to master!
The design is futuristic and retro with nice 8-bit music and sound effects. It includes single player, 2-player and online player (to challenge your friends or random opponent) and also leaderboards and achievements. Available for free right now: