45		Windoze (DOS, 1994)
44		Slot-Tris (DOS, 1995)
44		Xixit (DOS, 1995)
44		1993tris (DOS, 1993)
43		Zottris (DOS, 1992)
43		Fructus (Windows, 1996)
43		On Disk Monthly's Circuitry (DOS, 1992)
43		Zyconix (DOS, 1992)
43		Connectris (DOS, 1996)
43		Baku Baku Animal (Windows, 1996)
42		Hextris (DOS, 1991)
42		Wordtris (DOS, 1991)
42		DoubleLink (DOS, 1991)
41		Frac (DOS, 1990)
41		Faces ...tris III (DOS, 1990)
41		Super Puzzle Fighter II Turbo (Windows, 1998)
40		Roogoo (Windows, 2008)
40		μTorrent (included game) (Windows, 2008)
40		Betty Boop: Super Sweets (Windows, 2009)
40		Columns III: Revenge of Columns (Windows, 2010)
40		Beyond Columns (DOS, 1989)
40		Slydris (Windows, 2012)
40		Cobi Treasure Deluxe (Windows, 2007)
40		Delidash (Windows, 2003)
40		Flipster (Windows, 2004)
40		SmileTris 3 (Windows, 2004)
40		Squigs 3 (Windows, 2003)
40		SmileTris 2 (Windows, 2003)
40		Drop Mania (Windows, 1999)
40		Puzzle Station (Windows, 2000)
40		Triptych (Windows, 2002)
40		Bloxter (Windows, 2004)
40		Super PileUp! (Windows, 2004)
40		Odd Box (Windows, 2006)
40		Touhou Battle Gaiden (Windows, 2007)
40		BlockOut II (Windows, 2007)
40		Drop and Blow (Windows, 2006)
40		Alexey's Dwice (Windows, 2006)
40		Incadia (Windows, 2004)
40		Log(Hic!) (Windows, 2005)
40		Lumines: Puzzle Fusion (Windows, 2008)

Notes: Games similar to Stack Up, Games like Stack Up, Zeppelin Games Limited, Celery Software, DOS, Puzzle, Falling Block Puzzle, Real-Time, PC, Game Similarities.