The game is based on a traditional square grid map (2D computer graphics) and a realistic physics simulation.

Enigma is cross-platform and available for Mac OS X, GP2X, Microsoft Windows, FreeBSD and Linux (with packages available for several distributions).

The player risks making the level impossible to solve or having the marble sink, fall down an abyss, or be crushed or otherwise destroyed.

The challenges tax the player's problem solving and logic skills, dexterity, patience and speed.

The level automatically restarts from the beginning when all lives are lost, with the Oxyd colours randomly shuffled again.

World Records are usually formed by groups of very dedicated players who have mastered moving the marble quickly but precisely and know the ins and outs of each level.

Enigma has been praised in reviews as open source fan game and clone of Oxyd.

[12] Also several video game magazines' cover disks included Enigma as part of Freeware and remake collections, for instance GameStar from June 2005.