Games like Horde Arena
Games like Horde Arena include HELLDIVERS™ 2, Risk of Rain 2, PUBG: BATTLEGROUNDS, ELDEN RING NIGHTREIGN, and ARC Raiders. We matched them by the tags players give Horde Arena on Steam (Online Co-Op, Multiplayer, PvE, Action, and Shooter): closest matches first, and among equally close ones the better-known games.

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

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

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

ELDEN RING NIGHTREIGN
Shared: Online Co-Op · Multiplayer · Co-op

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

Warhammer 40,000: Space Marine 2
Shared: Co-op · Multiplayer · Action

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

Gunfire Reborn
Shared: Online Co-Op · Co-op · Multiplayer

World War Z
Shared: Online Co-Op · Multiplayer · Co-op

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

STAR WARS™ Battlefront™ II
Shared: Multiplayer · Shooter · Co-op

PAYDAY 2
Shared: Co-op · Action · Multiplayer

Tom Clancy’s The Division™
Shared: Multiplayer · Co-op · Action

Dead by Daylight
Shared: Multiplayer · Online Co-Op · Co-op

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

Tom Clancy's Ghost Recon® Wildlands
Shared: Multiplayer · Co-op · Shooter

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

Warhammer: Vermintide 2
Shared: Co-op · Multiplayer · Online Co-Op

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

Resident Evil 6
Shared: Co-op · Action · Online Co-Op

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

REMNANT II®
Shared: Co-op · Action · Third-Person Shooter

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

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