CodinGame
Image source: codingame.com
A platform of coding challenges presented as games, from single-player puzzles to multiplayer bot competitions.
How you code
You write code in one of many supported languages that reads the game state from standard input and prints its moves. In puzzles the code must reach a goal; in multiplayer games your bot plays against other players' bots and climbs a ranking. There are also short timed contests against other players.
Details
Categories: Competitive bot programming, Learn-to-code games
Platforms: Browser
Cost: Free
Language: 25+ real languages
Free for players. Business events and assessments are a separate product.
Last verified: 2026-10-08