15 OS15 OS is an old puzzle game for ZX Spectrum.Release dateDecember 31, 1998GenresPuzzlePlatformsZXSSimilar gamesSatisgamePuzzle GodsIQ DungeonEd, Edd n Eddy's Candy Machine DeluxeLimkinBlock BlastBungo Stray Dogs: Tales of the LostMad CapsTurn It On!Cut the Rope: Experiments
