Moby-Dick; or, The Whale, by Herman Melville and Jesse McGrew (2014)
(6 ratings)

Mondbasis Palindrom II, by Christian Blümke (2010)
(2 ratings)

Monsters: Apocalypse by Magic Orange 2013 (2 ratings)

Moon-Shaped by Jason Ermer 2006 (37 ratings)

Mordon's Quest by Peter Moreland, Peter Donne, and John Jones-Steele 1985 (1 rating)

Mortlake Manor by Ben Chenoweth 2012 (5 ratings)

Motel California, by Doug Schwartz of Pegamoose Games (2011)
(1 rating)

Mountains of Ket by R. A. McCormack 1983 (3 ratings)

A Mouse Speaks to Death by solipsistgames 2023 (2 ratings)

Mousetrap by Albie 2022

Mummy's Curse by Butch Greathouse and Garry Rheinhardt 1981 (1 rating)

Murder, by :3 (2012)
(3 ratings)

Murder - he said., by Jack Lockerby (1993)

The Murder of Mr. Luston, by H. W. Williams (2001)
(1 rating)

Murder Off Miami by Jason Somerville and Fergus McNeill 1987

Murder on the Spaceship by Creaky Gate Games 2018

Mushrooms Red As Meat by A C Godliman 2016 (3 ratings)

My Little Time Killer, by Entropic Pen (2013)

My Name is Tara Sue by Maki Yamazaki 2013 (14 ratings)

my own paper walls by fia glas 2018 (5 ratings)