65		15Slide (Windows, 2001)
65		Revolver (Windows, 2001)
64		2D 3D Puzzle War Craft No1 (Windows, 2002)
64		2D 3D Puzzle Say I Do (Windows, 2002)
64		15 Puzzle (Windows, 2000)
64		2D 3D Puzzle Dreamy Kiss (Windows, 2002)
64		7D Rings (Windows, 2002)
64		Picture Cubes (Windows, 2002)
63		WordSearch (Windows, 1999)
63		2 Squared (Windows, 1999)
63		Whirlwords (Windows, 1999)
61		Casper's Treasure Hunt (Windows, 1997)
54		NightSparks (Windows, 2000)

Notes: Games similar to x15, Games like x15, Agentix Software, Agentix Software, Windows, Puzzle, Turn-based, 1st-person, Fixed, Flip-screen, Sliding block, tile puzzle, PC, Game Similarities.