Games like Number 8
Games like Number 8 include PUBG: BATTLEGROUNDS, Grand Theft Auto V Legacy, Tomb Raider Game of the Year, Warhammer 40,000: Space Marine 2, and Aimlabs. We matched them by the tags players give Number 8 on Steam (Adventure, Action, Shooter, Action-Adventure, and Roguelike): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

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

Tomb Raider Game of the Year
Shared: Adventure · Action · Action-Adventure

Warhammer 40,000: Space Marine 2
Shared: Action · Adventure · Third-Person Shooter

Aimlabs
Shared: Shooter · Action · FPS

VLADiK BRUTAL
Shared: Shooter · Action · Adventure

Half-Life 2
Shared: Action · FPS · Shooter

BioShock Infinite
Shared: Action · Shooter · Adventure

Atomic Heart
Shared: Adventure · Action · FPS

Resident Evil Requiem
Shared: Action · Third-Person Shooter · FPS

Far Cry® 6
Shared: Action-Adventure · Shooter · Action

Far Cry® 5
Shared: Action-Adventure · Shooter · FPS

Escape From Duckov
Shared: Adventure · Action · Shooter

Gunfire Reborn
Shared: Roguelike · FPS · Action

Rise of the Tomb Raider™
Shared: Adventure · Action · Action-Adventure

Necromunda: Hired Gun
Shared: Adventure · Action · Shooter

Apex Legends™
Shared: Shooter · FPS · Action

Borderlands 2
Shared: Action · Shooter · FPS

Ready or Not
Shared: Shooter · FPS · Action

Black Mesa
Shared: Action · FPS · Shooter

Red Dead Redemption 2
Shared: Adventure · Action · Shooter

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Third-Person Shooter

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

Far Cry 3
Shared: Action · Adventure · FPS