Like more than one of them
29 games close to two or more of Sanctum, Left 4 Dead 2 and Red Dead Redemption 2
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Sanctum
Tom Clancy's Ghost Recon Wildlands
Sanctum, but a stealth game, and three times the hours
Mixed · 78%FPS · Co-opAlso like Red Dead Redemption 2 and Left 4 Dead 2
Blood and Bacon
Sanctum, but funny, and half the hours
Loved · 95%FPS · ShooterAlso like Left 4 Dead 2
Fallout: New Vegas
Red Dead Redemption 2, but an action RPG, and single-player
Loved · 96%Western · Open worldAlso like Left 4 Dead 2
Insurgency: Sandstorm
Sanctum, but realistic, and twice the hours
Liked · 85%FPS · ShooterAlso like Left 4 Dead 2
Evolve Stage 2
Sanctum, but free to play, and team-based
Mixed · 70%FPS · Co-opAlso like Left 4 Dead 2
STAR WARS Republic Commando
Sanctum, but in space, and even better loved
Loved · 96%FPS · Sci-fiAlso like Left 4 Dead 2
PlanetSide 2
Sanctum, but free to play, and four times the hours
Liked · 80%FPS · Sci-fiAlso like Left 4 Dead 2
Star Wars: Battlefront 2 (Classic, 2005)
Sanctum, but in space, and even better loved
Loved · 95%FPS · Sci-fiAlso like Left 4 Dead 2
Tom Clancy's Rainbow Six: Vegas 2
Much the same as Sanctum
Liked · 85%FPS · Co-opAlso like Left 4 Dead 2
Far Cry
Sanctum, but open world, and stealthy
Liked · 82%FPS · ShooterAlso like Red Dead Redemption 2 and Left 4 Dead 2
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Sanctum
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like Sanctum
BLOCKADE 3D
Sanctum, but pixel art, and more divisive
Divisive · 59%FPS · ShooterAlso like Left 4 Dead 2
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival HorrorAlso like Sanctum
RAGE
Sanctum, but post-apocalyptic, and twice the hours
Mixed · 78%FPS · Sci-fiAlso like Left 4 Dead 2
Counter-Strike: Condition Zero
Sanctum, but competitive, and half the hours
Loved · 92%FPS · ShooterAlso like Left 4 Dead 2
Halo: The Master Chief Collection
Sanctum, but story-rich
Loved · 92%FPS · Sci-fiAlso like Left 4 Dead 2
More like Sanctum
1 games closest to Sanctum 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.