99		Ultima V: Warriors of Destiny (Windows, 2014)
99		Exodus: Ultima III (Windows, 2014)
99		Ultima VI: The False Prophet (Windows, 2014)
99		Ultima II: The Revenge of the Enchantress... (Windows, 2014)
99		Ultima II: The Revenge of the Enchantress... (DOS, 1983)
99		Ultima I (DOS, 1987)
99		Ultima VI: The False Prophet (DOS, 1990)
99		Exodus: Ultima III (DOS, 1985)
99		Ultima IV: Quest of the Avatar (Windows, 2011)
99		Ultima V: Warriors of Destiny (DOS, 1988)
99		Ultima I (Windows, 2014)
92		Ultima IX: Ascension (Windows, 1999)
89		Ultima VII: The Black Gate (DOS, 1992)
89		Ultima VII: Part Two - Serpent Isle (DOS, 1993)
89		Pagan: Ultima VIII (DOS, 1994)
82		The Dark Heart of Uukrul (DOS, 1990)
82		FallThru (DOS, 1990)
82		The Dragon Sword (DOS, 1990)
81		Bones: The Game of the Haunted Mansion (DOS, 1991)
80		Wizardry Gold (Windows, 1996)
77		Akalabeth: World of Doom (Windows, 2014)
63		Tangled Tales (DOS, 1989)
60		Ancient Domains of Mystery (Windows, 1996)
60		The Kingdom of Syree II: Black Magic (DOS, 1994)
60		Ancient Domains of Mystery (DOS, 1996)
58		Eye of the Beholder (DOS, 1991)
57		Lands of Lore: Guardians of Destiny (Windows, 1997)
57		Lands of Lore: Guardians of Destiny (DOS, 1997)
56		Dungeon Master (DOS, 1992)
55		Dungeon Master II: Skullkeep (DOS, 1995)
55		Dungeon Hack (DOS, 1993)
53		Lands of Lore: The Throne of Chaos (DOS, 1993)
53		Knights of Legend (DOS, 1989)
50		Lands of Lore III (Windows, 1999)
50		The Keep (Windows, 2017)
50		The Mage's Tale (Windows, 2017)
50		Ultizurk III: The GuildMaster's Quest (DOS, 1995)
50		Escape from Ragor (DOS, 1995)
50		DragonRealms (Windows, 1996)
50		The Legend of Zelda: Time's Menagerie (Windows, 2010)
46		Worlds of Ultima: The Savage Empire (DOS, 1990)
44		Ultima: Worlds of Adventure 2 - Martian Dreams (DOS, 1991)
42		Mr. Robot (Windows, 2007)
42		Ultima: Worlds of Adventure 2 - Martian Dreams (Windows, 2012)
42		Worlds of Ultima: The Savage Empire (Windows, 2012)
40		Dark Disciples (Windows, 2004)
40		Atonement 2: Ruptured by Despair (Windows, 2016)
40		Dreamscape (Windows, 2010)
40		Dark Disciples 2 (Windows, 2009)
40		DarkStory Online (Windows, 2016)

Notes: Games similar to Ultima IV: Quest of the Avatar, Games like Ultima IV: Quest of the Avatar, ORIGIN Systems, Inc., ORIGIN Systems, Inc., DOS, Role-Playing, RPG, Fantasy, Puzzle elements, Turn-based, 1st-person, Top-down, Ultima, PC, Game Similarities.