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

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