Like more than one of them
28 games close to two or more of Haunt the House: Terrortown, Garry's Mod and Left 4 Dead 2
People Playground
Garry's Mod, but single-player, and 2D
Loved · 98%Physics · SandboxAlso like Haunt the House
Goat Simulator 3
Garry's Mod, but open world, and a fifth of the hours
Loved · 98%Physics · SandboxAlso like Haunt the House
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · PhysicsAlso like Haunt the House
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and half the hours
Loved · 97%Physics · SandboxAlso like Haunt the House
Bad Guys at School
Garry's Mod, but a tenth of the hours
Liked · 87%Sandbox · PhysicsAlso like Haunt the House
Crazy Machines 3
Garry's Mod, but a puzzle game, and harder
Loved · 95%Physics · SandboxAlso like Haunt the House
Ravenfield
Garry's Mod, but military, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
BONEWORKS
Garry's Mod, but full of puzzles, and a quarter of the hours
Loved · 92%Physics · SandboxAlso like Haunt the House
Just Cause 2
Garry's Mod, but a third-person shooter, and third-person
Loved · 91%Sandbox · PhysicsAlso like Haunt the House
Content Warning
Garry's Mod, but a horror game, and procedurally generated
Loved · 94%Physics · Online Co-OpAlso like Haunt the House 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
Fun with Ragdolls: The Game
Garry's Mod, but 3D, and a tenth of the hours
Liked · 88%Physics · SandboxAlso like Haunt the House
BIGFOOT
Haunt the House, but a survival game, and a horror game
Liked · 82%Supernatural · Psychological HorrorAlso like Left 4 Dead 2 and Garry's Mod
Human Fall Flat
Haunt the House, but co-op, and four times the hours
Loved · 95%Puzzle · ComedyAlso 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
Goat Simulator
Garry's Mod, but open world, and with destruction
Loved · 91%Physics · SandboxAlso like Haunt the House
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · SandboxAlso like Left 4 Dead 2
Mutilate-a-Doll 2
Garry's Mod, but gorier, and single-player
Loved · 93%Physics · SandboxAlso like Haunt the House
Saints Row: The Third
Garry's Mod, but a third-person shooter, and half the hours
Loved · 96%Sandbox · ComedyAlso like Haunt the House
Sneak Out
Haunt the House, but a stealth game, and about survival
Mixed · 69%Supernatural · ComedyAlso like Garry's Mod and Left 4 Dead 2
Viscera Cleanup Detail: Santa's Rampage
Haunt the House, but a job sim, and gorier
Loved · 92%Comedy · PhysicsAlso like Garry's Mod
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Just Cause 3
Garry's Mod, but a third of the hours, and more divisive
Liked · 84%Physics · SandboxAlso like Haunt the House
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.