Games like Futon and Rocket Launcher
Games like Futon and Rocket Launcher include Garry's Mod, GoreBox, Aimlabs, How to Fish, and PUBG: BATTLEGROUNDS. We matched them by the tags players give Futon and Rocket Launcher on Steam (Action, Casual, Physics, FPS, and 3D): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Physics · Casual · FPS

GoreBox
Shared: Physics · FPS · Shooter

Aimlabs
Shared: FPS · Action · Shooter

How to Fish
Shared: Physics · Shooter · FPS

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · Action

s&box
Shared: Casual · Action · Shooter

Left 4 Dead 2
Shared: FPS · Action · Shooter

Metro Exodus
Shared: FPS · Action · Post-apocalyptic

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Post-apocalyptic · Shooter

Echo Point Nova
Shared: FPS · Action · Shooter

Half-Life 2
Shared: Action · FPS · Shooter

METRO Last Light Redux
Shared: Action · FPS · Post-apocalyptic

VLADiK BRUTAL
Shared: Action · FPS · Shooter

METRO 2033 Redux
Shared: FPS · Action · Post-apocalyptic

Counter-Strike
Shared: Action · FPS · Shooter

Battlefield™ 2042
Shared: FPS · Action · Shooter

R.E.P.O.
Shared: Physics · 3D · Action

Call of Duty®
Shared: FPS · Action · Shooter

Neon White
Shared: FPS · Action · Shooter

Fallout 4
Shared: Post-apocalyptic · Action · Shooter

Apex Legends™
Shared: FPS · Action · Shooter

Borderlands 2
Shared: Action · Shooter · FPS

Counter-Strike: Source
Shared: Action · FPS · Shooter

DOOM Eternal
Shared: Action · FPS · Shooter