Games like Quell 4D
Games like Quell 4D include Half-Life 2, Black Mesa, BONEWORKS, DOOM, and Half-Life: Alyx. We matched them by the tags players give Quell 4D on Steam (Indie, Action, FPS, Shooter, and Adventure): closest matches first, and among equally close ones the better-known games.

Half-Life 2
Shared: Action · FPS · Shooter

Black Mesa
Shared: Action · FPS · Shooter

BONEWORKS
Shared: VR · Action · Shooter

DOOM
Shared: Action · FPS · Shooter

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

Halo: The Master Chief Collection
Shared: FPS · Great Soundtrack · Classic

BONELAB
Shared: VR · Action · Shooter

DOOM Eternal
Shared: Action · FPS · Great Soundtrack

Half-Life: Opposing Force
Shared: Action · FPS · Shooter

Counter-Strike 2
Shared: FPS · Action · Shooter

BioShock Infinite
Shared: Action · Shooter · FPS

BPM: BULLETS PER MINUTE
Shared: FPS · Action · Indie

Aimlabs
Shared: FPS · Action · Shooter

Half-Life
Shared: FPS · Action · Shooter

SUPERHOT VR
Shared: VR · Shooter · FPS

Far Cry 3
Shared: Action · FPS · Adventure

Serious Sam 4
Shared: Action · FPS · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · Action

Far Cry® 6
Shared: FPS · Action · Shooter

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

Pavlov
Shared: VR · Action · Shooter

Atomic Heart
Shared: Action · FPS · Adventure

STAR WARS™ Republic Commando™
Shared: Action · FPS · Shooter

Counter-Strike
Shared: Action · FPS · Shooter