Like more than one of them
30 games close to two or more of Black Skylands, Left 4 Dead 2 and Garry's Mod
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · PhysicsAlso like Black Skylands
Core Keeper
Black Skylands, but a survival crafting game, and twice the hours
Loved · 93%Base Building · SandboxAlso like Garry's Mod
State of Decay 2
Black Skylands, but co-op, and with zombies
Liked · 83%Base Building · Open worldAlso like Left 4 Dead 2
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Black Skylands and Garry's Mod
Enshrouded
Black Skylands, but an action RPG, and a survival crafting game
Liked · 86%Base Building · Open worldAlso like Garry's Mod
Grounded
Black Skylands, but a survival crafting game, and co-op
Loved · 90%Base Building · SurvivalAlso like Left 4 Dead 2
Space Engineers
Garry's Mod, but a survival crafting game, and in space
Liked · 89%Building · SandboxAlso like Black Skylands
Subsistence
Black Skylands, but more divisive
Mixed · 72%Base Building · SandboxAlso like Garry's Mod and 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
Far Cry 3
Garry's Mod, but open world, and a third of the hours
Liked · 88%FPS · SandboxAlso like Black Skylands and Left 4 Dead 2
Deadside
Black Skylands, but PvP, and post-apocalyptic
Mixed · 76%Base Building · SurvivalAlso like Garry's Mod and Left 4 Dead 2
Project Zomboid
Black Skylands, but with zombies, and three times the hours
Loved · 94%Sandbox · Open worldAlso like Left 4 Dead 2
7 Days to Die
Black Skylands, but made of voxels, and five times the hours
Liked · 87%Base Building · SurvivalAlso like Garry's Mod and Left 4 Dead 2
Far Cry 4
Garry's Mod, but open world, and half the hours
Liked · 85%FPS · SandboxAlso like Black Skylands and Left 4 Dead 2
HumanitZ
Black Skylands, but isometric, and post-apocalyptic
Mixed · 74%Base Building · SandboxAlso 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
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like Black Skylands
Grounded 2
Black Skylands, but a survival crafting game, and co-op
Liked · 81%Base Building · SurvivalAlso like Left 4 Dead 2
Valheim
Black Skylands, but three times the hours
Loved · 94%Base Building · Open worldAlso like Garry's Mod
The Forest
Black Skylands, but a survival horror game, and even better loved
Loved · 96%Open world · SurvivalAlso like Left 4 Dead 2
Generation Zero
Black Skylands, but with robots, and more divisive
Mixed · 72%Base Building · Open worldAlso like Left 4 Dead 2 and Garry's Mod
Fallout 3 - Game of the Year Edition
Black Skylands, but an action RPG, and first-person
Liked · 82%Open world · SandboxAlso like Garry's Mod and Left 4 Dead 2
VEIN
Black Skylands, but with zombies, and post-apocalyptic
Liked · 87%Base Building · Open worldAlso like Left 4 Dead 2
Starbound
Black Skylands, but in space, and three times the hours
Loved · 90%Sandbox · SurvivalAlso like Garry's Mod
State of Decay: Year-One
Black Skylands, but third-person
Liked · 82%Base Building · Open worldAlso like Left 4 Dead 2
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.