Games like Portable Ops
Games like Portable Ops include Counter-Strike 2, Squad, PUBG: BATTLEGROUNDS, Call of Duty®, and BattleBit Remastered. We matched them by the tags players give Portable Ops on Steam (Arena Shooter, FPS, Third-Person Shooter, Wargame, and Artificial Intelligence): closest matches first, and among equally close ones the better-known games.

Counter-Strike 2
Shared: FPS · Shooter · PvP

Squad
Shared: FPS · Military · PvP

PUBG: BATTLEGROUNDS
Shared: FPS · Third-Person Shooter · Shooter

Call of Duty®
Shared: FPS · Military · Shooter

BattleBit Remastered
Shared: FPS · Military · Shooter

WARDOGS
Shared: FPS · Military · PvP

Battlefield™ 2042
Shared: FPS · Military · Shooter

Tom Clancy's Rainbow Six Siege
Shared: FPS · PvP · Shooter

Holdfast: Nations At War
Shared: FPS · War · Shooter

Arma 3
Shared: Military · FPS · Shooter

Insurgency: Sandstorm
Shared: FPS · Military · Shooter

Rising Storm 2: Vietnam
Shared: FPS · Wargame · Military

THE FINALS
Shared: FPS · Arena Shooter · PvP

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

Battlefield™ 6
Shared: FPS · Military · War

Aimlabs
Shared: FPS · Third-Person Shooter · Shooter

Ravenfield
Shared: FPS · War · Military

Battlefield™ V
Shared: FPS · Military · War

Call of Duty®: Modern Warfare® II
Shared: FPS · Third-Person Shooter · Shooter

Overwatch®
Shared: FPS · Third-Person Shooter · PvP

Arma Reforger
Shared: FPS · Military · Shooter

Insurgency
Shared: FPS · Military · Shooter

Battlefield 4™
Shared: FPS · Military · War

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

