Games like Starship Troopers: Extermination
Games like Starship Troopers: Extermination include HELLDIVERS™ 2, Left 4 Dead 2, PAYDAY 2, STAR WARS™ Battlefront™ II, and PUBG: BATTLEGROUNDS. We matched them by the tags players give Starship Troopers: Extermination on Steam (Online Co-Op, Action, FPS, Sci-fi, and First-Person): closest matches first, and among equally close ones the better-known games.

HELLDIVERS™ 2
Shared: Online Co-Op · Action · Multiplayer

Left 4 Dead 2
Shared: FPS · Online Co-Op · Co-op

PAYDAY 2
Shared: Action · FPS · Co-op

STAR WARS™ Battlefront™ II
Shared: Multiplayer · Action · Sci-fi

PUBG: BATTLEGROUNDS
Shared: FPS · Action · Online Co-Op

How to Fish
Shared: Online Co-Op · Multiplayer · Co-op

Halo: The Master Chief Collection
Shared: FPS · Sci-fi · Multiplayer

Halo Infinite
Shared: FPS · Action · Multiplayer

Borderlands 2
Shared: Action · FPS · Co-op

Deep Rock Galactic
Shared: FPS · Co-op · PvE

Squad
Shared: FPS · Multiplayer · Action

Call of Duty®
Shared: FPS · Action · Multiplayer

Apex Legends™
Shared: FPS · Multiplayer · Action

Serious Sam 3: BFE
Shared: Action · FPS · Online Co-Op

Aliens: Colonial Marines Collection
Shared: Action · FPS · Sci-fi

Far Far West
Shared: Online Co-Op · FPS · Action

Titanfall® 2
Shared: FPS · Action · Multiplayer

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

ORION: Prelude
Shared: Action · FPS · Online Co-Op

Space Hulk: Deathwing - Enhanced Edition
Shared: Action · FPS · Online Co-Op

Lethal Company
Shared: Online Co-Op · First-Person · Co-op

Back 4 Blood
Shared: Online Co-Op · FPS · Multiplayer

Battlefield™ 2042
Shared: FPS · Action · Multiplayer

Delta Force
Shared: FPS · Online Co-Op · Multiplayer