Like more than one of them
28 games close to two or more of HALF DEAD 2, Garry's Mod and Red Dead Redemption 2
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · PhysicsAlso like HALF DEAD 2
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
CreativeDestruction
HALF DEAD 2, but a battle royale, and three times the hours
Mixed · 79%Massively Multiplayer · SurvivalAlso like Garry's Mod
Deadside
HALF DEAD 2, but a first-person shooter, and five times the hours
Mixed · 76%Survival · PvPAlso like Garry's Mod
SCP: Secret Laboratory
HALF DEAD 2, but free to play, and a survival horror game
Loved · 91%Survival · Co-opAlso like Garry's Mod
Space Engineers
Garry's Mod, but a survival crafting game, and in space
Liked · 89%Building · SandboxAlso like HALF DEAD 2
Fallout: New Vegas
Red Dead Redemption 2, but an action RPG, and single-player
Loved · 96%Western · Open worldAlso like Garry's Mod
Far Cry 4
Garry's Mod, but open world, and half the hours
Liked · 85%FPS · SandboxAlso like HALF DEAD 2
Far Cry 3
Garry's Mod, but stealthy, and a third of the hours
Liked · 88%FPS · SandboxAlso like HALF DEAD 2
Bad Guys at School
Garry's Mod, but a tenth of the hours
Liked · 87%Sandbox · PhysicsAlso like HALF DEAD 2
Left 4 Dead 2
HALF DEAD 2, but a first-person shooter, and six times the hours
Loved · 98%Survival · Co-opAlso like Garry's Mod
Insurgency: Sandstorm
HALF DEAD 2, but realistic, and six times the hours
Liked · 85%Massively Multiplayer · Online Co-OpAlso like Garry's Mod
Unturned
HALF DEAD 2, but free to play, and nine times the hours
Loved · 91%Survival · Massively MultiplayerAlso like Garry's Mod
Saints Row: The Third
Garry's Mod, but a third-person shooter, and open world
Loved · 96%Sandbox · ComedyAlso like Red Dead Redemption 2
Realm Royale Reforged
HALF DEAD 2, but a battle royale, and four times the hours
Mixed · 76%Survival · Massively MultiplayerAlso like Garry's Mod
PlanetSide 2
HALF DEAD 2, but open world, and 11 times the hours
Liked · 80%Massively Multiplayer · PvPAlso like Garry's Mod
SOS
HALF DEAD 2, but a battle royale, and more divisive
Disliked · 28%Survival · Massively MultiplayerAlso like Garry's Mod
Raft
HALF DEAD 2, but a base builder, and with crafting
Loved · 93%Survival · Co-opAlso like Garry's Mod
Battlefield 4
HALF DEAD 2, but military, and four times the hours
Liked · 85%Massively Multiplayer · PvPAlso like Garry's Mod
Robocraft
Garry's Mod, but free to play, and an MMO
Mixed · 73%Building · SandboxAlso like HALF DEAD 2
V Rising
HALF DEAD 2, but an action RPG, and with base building
Liked · 89%Survival · Massively MultiplayerAlso like Garry's Mod
BIGFOOT
HALF DEAD 2, but with several endings, and twice the hours
Liked · 82%Online Co-Op · Co-opAlso like Garry's Mod
Killing Floor
HALF DEAD 2, but with zombies, and seven times the hours
Loved · 95%Survival · Co-opAlso like Garry's Mod
Left 4 Dead
HALF DEAD 2, but team-based, and even better loved
Loved · 96%Survival · Co-opAlso like Garry's Mod
APB Reloaded
HALF DEAD 2, but a third-person shooter, and open world
Divisive · 63%Massively Multiplayer · PvPAlso like Red Dead Redemption 2 and Garry's Mod
Black Squad
HALF DEAD 2, but a first-person shooter, and four times the hours
Mixed · 76%Massively Multiplayer · PvPAlso like Garry's Mod
Killing Floor 2
HALF DEAD 2, but post-apocalyptic, and nine times the hours
Liked · 88%Survival · Online Co-OpAlso like Garry's Mod
More like HALF DEAD 2
2 games closest to HALF DEAD 2 of your picks
Darwin Project
HALF DEAD 2, but free to play, and twice the hours
Liked · 82%Survival · Massively Multiplayer
Tom Clancy's The Division
HALF DEAD 2, but a looter shooter, and 12 times the hours
Mixed · 71%Massively Multiplayer · Survival
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.