Like more than one of them
21 games close to two or more of X3: Terran Conflict, Left 4 Dead 2 and Garry's Mod
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · SandboxAlso like X3: Terran Conflict
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
Empyrion - Galactic Survival
Garry's Mod, but a space sim, and a survival crafting game
Mixed · 78%Building · PhysicsAlso like X3: Terran Conflict
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
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
Starbound
Garry's Mod, but with crafting, and in space
Loved · 90%Sandbox · BuildingAlso like X3: Terran Conflict
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Fallout 3 - Game of the Year Edition
Garry's Mod, but an action RPG, and a quarter of the hours
Liked · 82%Sandbox · FPSAlso like Left 4 Dead 2
PlanetSide 2
Garry's Mod, but free to play, and an MMO
Liked · 80%FPS · ShooterAlso like Left 4 Dead 2
Blockland
Garry's Mod, but a quarter of the hours, and more divisive
Mixed · 74%Building · SandboxAlso like Left 4 Dead 2
Far Cry 4
Garry's Mod, but stealthy, and half the hours
Liked · 85%FPS · SandboxAlso like Left 4 Dead 2
Trailmakers
Garry's Mod, but co-op, and in space
Loved · 92%Physics · BuildingAlso like X3: Terran Conflict
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · SandboxAlso like Left 4 Dead 2
Fallout: New Vegas
Garry's Mod, but an action RPG, and post-apocalyptic
Loved · 96%FPS · SandboxAlso like Left 4 Dead 2
7 Days to Die
Garry's Mod, but a base builder, and with zombies
Liked · 87%Building · SandboxAlso like Left 4 Dead 2
More like X3: Terran Conflict
3 games closest to X3: Terran Conflict of your picks
More like Garry's Mod
6 games closest to Garry's Mod of your picks
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · Physics
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and half the hours
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.