Games like Pigslaughter
Games like Pigslaughter include Risk of Rain 2, Marvel Rivals, Escape From Duckov, Hitler is my crush, and Terminull Brigade™. We matched them by the tags players give Pigslaughter on Steam (Hero Shooter, Top-Down Shooter, Shooter, Shoot 'Em Up, and Third-Person Shooter): closest matches first, and among equally close ones the better-known games.

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

Marvel Rivals
Shared: Hero Shooter · Third-Person Shooter · Shooter

Escape From Duckov
Shared: Top-Down Shooter · Shooter · Third-Person Shooter

Hitler is my crush
Shared: Hero Shooter · Shoot 'Em Up · Third-Person Shooter

Terminull Brigade™
Shared: Hero Shooter · Third-Person Shooter · Shooter

HELLDIVERS™ 2
Shared: Shooter · Third-Person Shooter · Action

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Indie · Shooter

Plants vs. Zombies: Battle for Neighborville™
Shared: Hero Shooter · Third-Person Shooter · Shooter

Nuclear Throne
Shared: Indie · Top-Down Shooter · Roguelike

BALL x PIT
Shared: Top-Down Shooter · Shoot 'Em Up · Roguelike

Grand Theft Auto V Legacy
Shared: Shooter · Third Person · Action

Insect Swarm
Shared: Shooter · Top-Down Shooter · Shoot 'Em Up

Farlight 84
Shared: Hero Shooter · Shooter · Third-Person Shooter

Rogue Company
Shared: Shooter · Third-Person Shooter · Hero Shooter

Strinova
Shared: Hero Shooter · Third-Person Shooter · Shooter

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

SNKRX
Shared: Top-Down Shooter · Shoot 'Em Up · Shooter

Apocalypse Party
Shared: Top-Down Shooter · Shoot 'Em Up · Action Roguelike

Wild Assault
Shared: Hero Shooter · Shooter · Third-Person Shooter

Crab Champions
Shared: Third-Person Shooter · Action Roguelike · Roguelike

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

Blazing Beaks
Shared: Top-Down Shooter · Shooter · Roguelike

The Ascent
Shared: Top-Down Shooter · Shooter · Indie

Yet Another Zombie Survivors
Shared: Top-Down Shooter · Indie · Action Roguelike