Like more than one of them
24 games close to two or more of Nine Parchments, Left 4 Dead 2 and Garry's Mod
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
Magicka 2
Nine Parchments, but funny
Liked · 80%Magic · Local Co-OpAlso like Garry's Mod and Left 4 Dead 2
Borderlands 3
Garry's Mod, but a looter shooter, and an action RPG
Liked · 81%FPS · Online Co-OpAlso like Nine Parchments and Left 4 Dead 2
SAS: Zombie Assault 4
Nine Parchments, but with zombies, and 2D
Liked · 86%Top-Down Shooter · Co-opAlso like Left 4 Dead 2
Borderlands: The Pre-Sequel
Garry's Mod, but a looter shooter, and half the hours
Mixed · 79%FPS · ComedyAlso like Nine Parchments and Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Nation Red
Nine Parchments, but about survival, and gorier
Liked · 89%Top-Down Shooter · 4 Player LocalAlso like Left 4 Dead 2
Resident Evil 6
Left 4 Dead 2, but split-screen, and more divisive
Mixed · 77%Zombies · Online Co-OpAlso like Nine Parchments
How to Fish
Garry's Mod, but with fishing, and a tenth of the hours
Loved · 95%Physics · Online Co-OpAlso like Left 4 Dead 2
Stick Fight: The Game
Nine Parchments, but a fighting game, and a party game
Loved · 93%4 Player Local · Local Co-OpAlso like Garry's Mod
Serious Sam 3: BFE
Garry's Mod, but a boomer shooter, and a tenth of the hours
Liked · 88%FPS · ComedyAlso like Left 4 Dead 2
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like 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 Garry's Mod
More like Nine Parchments
2 games closest to Nine Parchments of your picks
HELLDIVERS
Nine Parchments, but top-down, and twice the hours
Loved · 90%Top-Down Shooter · 4 Player Local
More like Left 4 Dead 2
2 games closest to Left 4 Dead 2 of your picks
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · Survival
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival Horror
More like Garry's Mod
2 games closest to Garry's Mod of your picks
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.