Enigma

Enigma is a puzzle game clone of Oxyd licensed under the GPL. The latest version of the game is 1.30 released on August 27, 2021. It uses the SDL library.

Gameplay
In Enigma your task is to uncover same-colored Oxyd stones. Obstacles include traps, mazes, laser beams, and puzzles.

The game is best controlled with a mouse; a graphics tablet won’t work that well.