Fan game

In the context of Tetris, fan games are computer tetromino games unconnected with Elorg, The Tetris Company, or any other licensor of rights in the Tetris trademark. They tend to follow the well-known rules of Tetris but may not strictly follow any official guidelines.

List of fan games

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 * Aint - free software for MS-DOS, possibly the first copylefted tetromino game
 * Bedter by Andrew Bednarz - freeware for Windows and Linux, famously targeted by TTC which alleged "look and feel" copyright violation
 * Tetripz by Mute Fantasies - freeware for MS-DOS, with visual distortions of the playfield
 * Lockjaw: The Overdose (formerly Tetanus On Drugs) - free software for Game Boy Advance, inspired by Tetripz and considered by many players to be superior in look and feel to the GBA version of Tetris Worlds
 * Cultris
 * Breakris
 * GinT - Falling Tetrimino game within the 3D world of Second Life.

Comparison of notable fan games

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