Games like Snack Invaders
Games like Snack Invaders include PUBG: BATTLEGROUNDS, HELLDIVERS™ 2, Left 4 Dead 2, Counter-Strike 2, and Starship Troopers: Extermination. We matched them by the tags players give Snack Invaders on Steam (Online Co-Op, Shooter, Action, Survival, and PvE): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Online Co-Op

HELLDIVERS™ 2
Shared: Online Co-Op · Shooter · PvE

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

Counter-Strike 2
Shared: Shooter · FPS · Action

Starship Troopers: Extermination
Shared: Online Co-Op · Action · FPS

PAYDAY 2
Shared: Action · Online Co-Op · Co-op

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

Team Fortress 2
Shared: Shooter · Action · FPS

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

ARC Raiders
Shared: PvE · Shooter · Online Co-Op

Far Far West
Shared: Online Co-Op · PvE · Shooter

DayZ
Shared: Online Co-Op · Survival · Shooter

Tom Clancy's Rainbow Six Siege
Shared: Shooter · FPS · Online Co-Op

Left 4 Dead
Shared: Action · Shooter · Co-op

Borderlands 2
Shared: Shooter · Action · Co-op

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Online Co-Op

STALZONE
Shared: Online Co-Op · Survival · FPS

Aliens: Fireteam Elite
Shared: Shooter · Action · Co-op

Among Us
Shared: Online Co-Op · Survival · Co-op

Killing Floor
Shared: FPS · Survival · Online Co-Op

ELDEN RING NIGHTREIGN
Shared: Online Co-Op · Souls-like · Action

Mycopunk
Shared: Online Co-Op · Action · Shooter

Borderlands: The Pre-Sequel
Shared: Action · FPS · Co-op

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