Games like Trespassers
Games like Trespassers include Hotline Miami, Broforce, Hotline Miami 2: Wrong Number, CARRION, and People Playground. We matched them by the tags players give Trespassers on Steam (Action, Indie, Violent, Gore, and Early Access): closest matches first, and among equally close ones the better-known games.

Hotline Miami
Shared: Action · Violent · Indie

Broforce
Shared: Action · Pixel Graphics · Indie

Hotline Miami 2: Wrong Number
Shared: Gore · Action · Violent

CARRION
Shared: Gore · Action · Pixel Graphics

People Playground
Shared: Gore · Violent · 2D

My Friend Pedro
Shared: Action · Indie · Gore

Blasphemous
Shared: Gore · Pixel Graphics · Violent

Terraria
Shared: Pixel Graphics · 2D · Survival

Superfighters Deluxe
Shared: Action · Indie · Violent

Katana ZERO
Shared: Action · Pixel Graphics · Indie

Mother Russia Bleeds
Shared: Action · Violent · Gore

Dead Pixels
Shared: Action · Indie · Pixel Graphics

Party Hard
Shared: Violent · Indie · Pixel Graphics

Death Road to Canada
Shared: Pixel Graphics · Action · Zombies

DOOM Eternal
Shared: Action · Gore · Violent

Left 4 Dead 2
Shared: Action · Zombies · Gore

171
Shared: Action · Indie · Gore

Kindergarten 2
Shared: Gore · Indie · Violent

DEADBOLT
Shared: Indie · Action · Pixel Graphics

Dungeon Munchies
Shared: Action · Indie · Pixel Graphics

The Final Station
Shared: Indie · Pixel Graphics · Action

NOT A HERO
Shared: Action · Indie · Pixel Graphics

GORN
Shared: Action · Gore · Violent

Duck Game
Shared: Action · Pixel Graphics · Indie