This "Pacifist Challenge Run" games list will feature games in which the majority of the game is playable without killing anything, even if the game's design eventually forces the player to reluctantly dispatch one or more entities to complete the game. Some of the games on the list are "prospects" that we haven't directly tested, but have been recommended to us.
(Also see our separate "Zero Kill Run" game list for games that can reputedly be won without killing a single thing.)
* Note: This and all other lists are still under active construction,
and will feature brief descriptions and links soon— but we're making the
list of prospects that fit the list criteria visible now (just in case
it helps anyone find a good prospect early on). Good luck!
The Age of Decadence
Arcanum of Steamworks and Magicka Obscura
Baldur's Gate Series
Contra Series
Dark Forces (aka Star Wars: Dark Forces) Series
Deus Ex Series
(Both the original Deus Ex and Deus Ex: Mankind Divided arereputedly also confirmed zero kill run games.)
Dungeon Master II (maybe also DM1)
Ecco the Dolphin Series
Fallout Series
(Fallout 4 is reputedly a confirmed zero kill-enabled game, possibly also Fallout 1)
Geneforge Series
Gothic II (possibly also Gothic I and III)
Europa 1400: aka The Guild
Ikaruga
Lionheart: Legacy of the Crusader
Metal Gear Series
(Metal Gear Solid 4 is a confirmed zero kill run game)
Neverwinter Nights Series
Planescape
Shadowrun: Hong Kong
(possibly others in Shadowrun Returns franchise)
Skyrim (aka the Elder Scrolls V: Skyrim, and possibly others in the Elder Scrolls series)
Star Wars: Jedi Academy Series
Star Wars: Knights of the Old Republic Series
System Shock Series
Vampire: The Masquerade - Bloodlines