Games like PolygonDuty
Games like PolygonDuty include PUBG: BATTLEGROUNDS, Warhammer 40,000: Space Marine 2, Risk of Rain 2, Escape the Backrooms, and OUTRIDERS. We matched them by the tags players give PolygonDuty on Steam (Action, Action-Adventure, Battle Royale, Survival Horror, and Looter Shooter): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Battle Royale · Action · Third-Person Shooter

Warhammer 40,000: Space Marine 2
Shared: Action · Third-Person Shooter · Action-Adventure

Risk of Rain 2
Shared: Third-Person Shooter · Action · Looter Shooter

Escape the Backrooms
Shared: Survival Horror · Co-op · Online Co-Op

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

Resident Evil Requiem
Shared: Survival Horror · Action · Third-Person Shooter

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

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

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

Resident Evil 5
Shared: Action · Co-op · Third-Person Shooter

PEAK
Shared: Co-op · Online Co-Op · Adventure

PAYDAY 2
Shared: Action · Looter Shooter · Co-op

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

Resident Evil 6
Shared: Action · Third-Person Shooter · Co-op

Escape From Duckov
Shared: Action · Looter Shooter · Adventure

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

The First Descendant
Shared: Looter Shooter · Action · Third-Person Shooter

A Way Out
Shared: Action-Adventure · Action · Co-op

Crab Champions
Shared: Looter Shooter · Third-Person Shooter · 3D

Sker Ritual
Shared: Action-Adventure · Co-op · Adventure

Resident Evil Revelations 2
Shared: Action · Survival Horror · Third-Person Shooter

Tomb Raider Game of the Year
Shared: Action · Action-Adventure · Adventure

Gunfire Reborn
Shared: Action · Looter Shooter · Co-op

Remnant: From the Ashes
Shared: Action · Third-Person Shooter · Co-op