Like more than one of them
25 games close to two or more of Superfighters Deluxe, Garry's Mod and 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
Goat Simulator 3
Garry's Mod, but open world, and a fifth of the hours
Loved · 98%Physics · SandboxAlso like Superfighters Deluxe
Serious Sam 3: BFE
Superfighters Deluxe, but a first-person shooter, and funny
Liked · 88%Online Co-Op · Local Co-OpAlso like Garry's Mod and Left 4 Dead 2
How to Fish
Garry's Mod, but with fishing, and a tenth of the hours
Loved · 95%Physics · Online Co-OpAlso like Superfighters Deluxe and Left 4 Dead 2
PEAK
Garry's Mod, but a 3D platformer, and a survival game
Loved · 94%Physics · Online Co-OpAlso like Superfighters Deluxe
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like 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
R.E.P.O.
Garry's Mod, but a survival horror game, and a quarter of the hours
Loved · 96%Physics · ComedyAlso like Left 4 Dead 2
Stick Fight: The Game
Superfighters Deluxe, but a party game, and half the hours
Loved · 93%Local Multiplayer · PhysicsAlso like Garry's Mod
Resident Evil 6
Left 4 Dead 2, but co-op, and more divisive
Mixed · 77%Zombies · Online Co-OpAlso like Superfighters Deluxe
Contagion
Left 4 Dead 2, but PvP, and a third of the hours
Mixed · 73%Zombies · FPSAlso like Superfighters Deluxe
Insurgency: Sandstorm
Garry's Mod, but military, and half the hours
Liked · 85%FPS · ShooterAlso like Left 4 Dead 2
Door Kickers: Action Squad
Superfighters Deluxe, but a shoot 'em up, and retro
Loved · 95%Level Editor · Local Co-OpAlso like Left 4 Dead 2
Human Fall Flat
Superfighters Deluxe, but full of puzzles, and open world
Loved · 95%Physics · Local MultiplayerAlso like Garry's Mod
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Garry's Mod
Bopl Battle
Superfighters Deluxe, but a party game, and cartoony
Loved · 97%Local Multiplayer · Local Co-OpAlso like Garry's Mod
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · SandboxAlso like Left 4 Dead 2
More like Superfighters Deluxe
3 games closest to Superfighters Deluxe of your picks
Castle Crashers
Superfighters Deluxe, but even better loved
Loved · 96%Beat 'em up · Local Multiplayer
BattleBlock Theater
Superfighters Deluxe, but funny, and even better loved
Loved · 97%Level Editor · Platformer
Broforce
Superfighters Deluxe, but a shoot 'em up, and side-scrolling
Loved · 97%Platformer · Local Co-Op
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
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and single-player
Loved · 97%Physics · Sandbox
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.