Like more than one of them
26 games close to two or more of Sanctum, Red Dead Redemption 2 and Garry's Mod
Fallout: New Vegas
Red Dead Redemption 2, but an action RPG, and single-player
Loved · 96%Western · Open worldAlso like Garry's Mod
Just Cause 2
Garry's Mod, but a third-person shooter, and a quarter of the hours
Loved · 91%Sandbox · PhysicsAlso like Red Dead Redemption 2
Far Cry
Sanctum, but open world, and stealthy
Liked · 82%FPS · ShooterAlso like Garry's Mod and Red Dead Redemption 2
Insurgency: Sandstorm
Sanctum, but realistic, and twice the hours
Liked · 85%FPS · ShooterAlso like Garry's Mod
PlanetSide 2
Sanctum, but free to play, and four times the hours
Liked · 80%FPS · Sci-fiAlso like Garry's Mod
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Sanctum
Avatar: Frontiers of Pandora
Sanctum, but open world, and twice the hours
Mixed · 78%Online Co-Op · Sci-fiAlso like Garry's Mod
Far Far West
Sanctum, but a Western, and with robots
Loved · 96%FPS · Online Co-OpAlso like Red Dead Redemption 2 and Garry's Mod
Bloons TD5
Sanctum, but 2D, and even better loved
Loved · 95%Tower Defense · Co-opAlso like Garry's Mod
Serious Sam HD: The First Encounter
Sanctum, but funny, and gorier
Loved · 93%FPS · 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 Sanctum
Fallout 4
Red Dead Redemption 2, but an action RPG, and post-apocalyptic
Liked · 81%Open world · ShooterAlso like Garry's Mod and Sanctum
Saints Row: The Third
Garry's Mod, but a third-person shooter, and open world
Loved · 96%Sandbox · ComedyAlso like Red Dead Redemption 2
Tom Clancy's Rainbow Six: Vegas 2
Much the same as Sanctum
Liked · 85%FPS · Co-opAlso like Garry's Mod
How to Fish
Garry's Mod, but with fishing, and a tenth of the hours
Loved · 95%Physics · Online Co-OpAlso like Sanctum
More like Sanctum
2 games closest to Sanctum of your picks
Star Wars: Battlefront 2 (Classic, 2005)
Sanctum, but in space, and even better loved
Loved · 95%FPS · Sci-fi
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.