Like more than one of them
23 games close to two or more of Universe Sandbox Legacy, Garry's Mod and Stardew Valley
Kerbal Space Program
Universe Sandbox Legacy, but 20 times the hours, and even better loved
Loved · 96%Science · SpaceAlso like Garry's Mod
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · SandboxAlso like Universe Sandbox Legacy
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · PhysicsAlso like Universe Sandbox Legacy
People Playground
Garry's Mod, but single-player, and 2D
Loved · 98%Physics · SandboxAlso like Universe Sandbox Legacy
Kerbal Space Program 2
Universe Sandbox Legacy, but harder, and three times the hours
Disliked · 26%Science · SpaceAlso 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 Universe Sandbox Legacy
Space Engineers 2
Universe Sandbox Legacy, but a survival game, and open world
Mixed · 75%Space · ScienceAlso like Garry's Mod
Crazy Machines 3
Garry's Mod, but a puzzle game, and harder
Loved · 95%Physics · SandboxAlso like Universe Sandbox Legacy
Goat Simulator 3
Garry's Mod, but open world, and a fifth of the hours
Loved · 98%Physics · SandboxAlso like Universe Sandbox Legacy
Spaceflight Simulator
Universe Sandbox Legacy, but 2D, and four times the hours
Loved · 97%Science · SpaceAlso like Garry's Mod
Mutilate-a-Doll 2
Garry's Mod, but gorier, and single-player
Loved · 93%Physics · SandboxAlso like Universe Sandbox Legacy
Brick Rigs
Garry's Mod, but with destruction, and with driving
Loved · 95%Sandbox · PhysicsAlso like Universe Sandbox Legacy
Just Cause 2
Garry's Mod, but a third-person shooter, and a quarter of the hours
Loved · 91%Sandbox · PhysicsAlso like Universe Sandbox Legacy
Just Cause 3
Garry's Mod, but a third-person shooter, and a third of the hours
Liked · 84%Physics · SandboxAlso like Universe Sandbox Legacy
Poly Bridge
Garry's Mod, but a puzzle game, and harder
Loved · 91%Physics · BuildingAlso like Universe Sandbox Legacy
BONEWORKS
Garry's Mod, but in VR, and full of puzzles
Loved · 92%Physics · SandboxAlso like Universe Sandbox Legacy
Aviassembly
Garry's Mod, but a flight game, and with crafting
Loved · 97%Physics · BuildingAlso like Universe Sandbox Legacy
Reassembly
Garry's Mod, but a shoot 'em up, and top-down
Loved · 94%Building · SandboxAlso like Universe Sandbox Legacy
Terraria
Garry's Mod, but pixel art, and about survival
Loved · 97%Sandbox · BuildingAlso like Stardew Valley
BeamNG.drive
Garry's Mod, but a driving sim, and with driving
Loved · 97%Physics · SandboxAlso like Universe Sandbox Legacy
Garden Paws
Stardew Valley, but a shopkeeping game, and half the hours
Loved · 90%Farming Sim · AgricultureAlso like Garry's Mod
Sand:box
Universe Sandbox Legacy, but free to play, and pixel art
Loved · 94%God Game · EducationAlso like Garry's Mod
More like Garry's Mod
3 games closest to Garry's Mod of your picks
More like Stardew Valley
4 games closest to Stardew Valley of your picks
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.