Games like Poly Canker
Games like Poly Canker include Starship Troopers: Extermination, Fistful of Frags, Paint the Town Red, God of War, and BioShock Infinite. We matched them by the tags players give Poly Canker on Steam (Action, Arcade, Arena Shooter, First-Person, and Fantasy): closest matches first, and among equally close ones the better-known games.

Starship Troopers: Extermination
Shared: Action · First-Person · Arcade

Fistful of Frags
Shared: Arena Shooter · First-Person · Action

Paint the Town Red
Shared: Action · First-Person · Violent

God of War
Shared: Action · Combat · Singleplayer

BioShock Infinite
Shared: Action · First-Person · Fantasy

Crimson Desert Enhanced
Shared: Action · Fantasy · Combat

POSTAL 2
Shared: First-Person · Funny · Violent

Anger Foot
Shared: Arcade · Action · First-Person

Grand Theft Auto V Legacy
Shared: Action · First-Person · Singleplayer

Black Myth: Wukong
Shared: Action · Combat · Singleplayer

GORN
Shared: Action · Funny · First-Person

Ghostrunner
Shared: Action · First-Person · Singleplayer

Bright Memory: Infinite
Shared: Action · Indie · First-Person

Call of Duty®
Shared: Action · First-Person · Singleplayer

Middle-earth: Shadow of War
Shared: Action · Fantasy · Singleplayer

SUPERHOT
Shared: Action · First-Person · Indie

Project Wingman
Shared: Action · Arcade · Indie

Portal 2
Shared: First-Person · Singleplayer · Funny

Lethal Company
Shared: First-Person · Funny · PvE

Ready or Not
Shared: First-Person · Action · Singleplayer

Shotgun Farmers
Shared: Action · First-Person · Funny

Serious Sam Fusion 2017 (beta)
Shared: Action · Indie · First-Person

Borderlands 2
Shared: Action · First-Person · Funny

My Friend Pedro
Shared: Action · Indie · Violent