Like more than one of them
24 games close to two or more of Wolfenstein 3D, Garry's Mod and Left 4 Dead 2
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Wolfenstein 3D and Garry's Mod
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Garry's Mod
Insurgency: Sandstorm
Garry's Mod, but military, and half the hours
Liked · 85%FPS · ShooterAlso like Left 4 Dead 2
Sven Co-op
Left 4 Dead 2, but free to play, and retro
Loved · 94%FPS · Team-BasedAlso like Wolfenstein 3D and Garry's Mod
Serious Sam 2
Garry's Mod, but a boomer shooter, and a tenth of the hours
Loved · 90%FPS · ComedyAlso like Wolfenstein 3D and Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Call of Duty: Modern Warfare 2 (2009)
Garry's Mod, but military, and a fifth of the hours
Loved · 93%FPS · ShooterAlso like Left 4 Dead 2
Serious Sam HD: The First Encounter
Garry's Mod, but a boomer shooter, and a tenth of the hours
Loved · 93%FPS · ComedyAlso like Wolfenstein 3D and Left 4 Dead 2
Blood: Fresh Supply
Wolfenstein 3D, but horror, and four times the hours
Loved · 94%FPS · Old SchoolAlso like Left 4 Dead 2
Counter-Strike: Source
Garry's Mod, but team-based, and competitive
Loved · 96%FPS · ShooterAlso like Left 4 Dead 2
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
WARMODE
Left 4 Dead 2, but an MMO, and a tenth of the hours
Divisive · 62%Zombies · FPSAlso like Garry's Mod and Wolfenstein 3D
Blood: One Unit Whole Blood
Wolfenstein 3D, but horror, and twice the hours
Loved · 92%1990's · FPSAlso like Left 4 Dead 2
Unturned
Left 4 Dead 2, but a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
More like Wolfenstein 3D
4 games closest to Wolfenstein 3D of your picks
DOOM + DOOM II
Wolfenstein 3D, but three times the hours, and even better loved
Loved · 97%1990's · FPS
More like Garry's Mod
2 games closest to Garry's Mod of your picks
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and single-player
Loved · 97%Physics · Sandbox
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · Physics
How this list is made
Each game is measured against each of your picks the way a games-like list measures it: the Steam community tags, Steam genres and IGDB themes they share, each counting for more the fewer games carry it. A game's place is how alike it is to your picks together, as a share of each pick's best match, so one alike to two of them comes before one alike to just one. It must be close to at least one of them, as close as it would have to be on that game's own list.
None of your picks is on the list, nor a second release of one, nor a game of their own series. Up to 30 games are shown. Under each name, the kinds it shares with the pick it is closest to, and how it differs from that pick.