Games like Outposters
Games like Outposters include Left 4 Dead 2, PUBG: BATTLEGROUNDS, HELLDIVERS™ 2, ARC Raiders, and DayZ. We matched them by the tags players give Outposters on Steam (Zombies, Online Co-Op, Survival, Shooter, and Third-Person Shooter): closest matches first, and among equally close ones the better-known games.

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

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

HELLDIVERS™ 2
Shared: Online Co-Op · Third-Person Shooter · Shooter

ARC Raiders
Shared: Online Co-Op · Third-Person Shooter · Shooter

DayZ
Shared: Zombies · Survival · Online Co-Op

Tom Clancy’s The Division™
Shared: Looter Shooter · Third-Person Shooter · Shooter

World War Z
Shared: Zombies · Online Co-Op · Shooter

Tom Clancy’s The Division® 2
Shared: Looter Shooter · Online Co-Op · Third-Person Shooter

Killing Floor 2
Shared: Zombies · Online Co-Op · Shooter

7 Days to Die
Shared: Zombies · Survival · Online Co-Op

The First Descendant
Shared: Online Co-Op · Looter Shooter · Third-Person Shooter

Left 4 Dead
Shared: Zombies · Online Co-Op · Shooter

Risk of Rain 2
Shared: Third-Person Shooter · Multiplayer · Online Co-Op

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

DeadPoly
Shared: Zombies · Survival · Online Co-Op

Warframe
Shared: Looter Shooter · Third-Person Shooter · Online Co-Op

Resident Evil 6
Shared: Zombies · Online Co-Op · Third-Person Shooter

No More Room in Hell 2
Shared: Zombies · Online Co-Op · Survival

PAYDAY 2
Shared: Online Co-Op · Action · Looter Shooter

Dying Light
Shared: Zombies · Online Co-Op · Survival

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

STALZONE
Shared: Online Co-Op · Survival · PvE

OUTRIDERS
Shared: Looter Shooter · Third-Person Shooter · Action

Resident Evil 5
Shared: Zombies · Online Co-Op · Action