Games like Null G
Games like Null G include Apex Legends™, Half-Life 2, Halo Infinite, BioShock Infinite, and Black Mesa. We matched them by the tags players give Null G on Steam (Action, Adventure, Shooter, Shoot 'Em Up, and FPS): closest matches first, and among equally close ones the better-known games.

Apex Legends™
Shared: Shooter · Action · FPS

Half-Life 2
Shared: Action · FPS · Shooter

Halo Infinite
Shared: Action · Shooter · FPS

BioShock Infinite
Shared: Action · Shooter · FPS

Black Mesa
Shared: Action · FPS · Shooter

Titanfall® 2
Shared: FPS · Shooter · Action

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · FPS

Battlefield™ 2042
Shared: Shooter · FPS · Action

Half-Life: Alyx
Shared: VR · FPS · Shooter

Call of Duty®: Black Ops III
Shared: Action · Shooter · FPS

Far Cry 3
Shared: Action · Adventure · FPS

Pavlov
Shared: VR · Action · Shooter

Call of Duty®
Shared: Action · Shooter · FPS

Grand Theft Auto V Legacy
Shared: Action · Shooter · Adventure

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · FPS

Ready or Not
Shared: Shooter · FPS · Action

Pixel Gun 3D: PC Edition
Shared: Action · Shooter · FPS

Starship Troopers: Extermination
Shared: Action · FPS · First-Person

BONEWORKS
Shared: VR · Action · Shooter

Borderlands 2
Shared: Action · Shooter · FPS

BONELAB
Shared: VR · Action · Shooter

DOOM
Shared: Action · FPS · Shooter

DOOM Eternal
Shared: Action · FPS · Shooter