Games like The Outpost Nine: Episode 1
Games like The Outpost Nine: Episode 1 include Hotline Miami, Raging Loop, Mouthwashing, Middle-earth: Shadow of War, and Fran Bow. We matched them by the tags players give The Outpost Nine: Episode 1 on Steam (Indie, Gore, Violent, Adventure, and Text-Based): closest matches first, and among equally close ones the better-known games.

Hotline Miami
Shared: Violent · Indie · Gore

Raging Loop
Shared: Indie · Adventure · Visual Novel

Mouthwashing
Shared: Indie · Gore · Retro

Middle-earth: Shadow of War
Shared: Adventure · Singleplayer · Violent

Fran Bow
Shared: Indie · Adventure · Story Rich

Tiny Bunny
Shared: Gore · Visual Novel · Story Rich

God of War
Shared: Adventure · Singleplayer · Story Rich

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

Florence
Shared: Indie · Adventure · Singleplayer

Kindergarten 2
Shared: Gore · Adventure · Indie

People Playground
Shared: Gore · Violent · Singleplayer

The Beginner's Guide
Shared: Indie · Story Rich · Singleplayer

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Story Rich

Hello Charlotte EP3: Childhood's End
Shared: Gore · Indie · Violent

To the Moon
Shared: Indie · Adventure · Story Rich

Papers, Please
Shared: Indie · Singleplayer · Retro

CARRION
Shared: Gore · Indie · Violent

A Bird Story
Shared: Indie · Adventure · Story Rich

OneShot
Shared: Indie · Story Rich · Singleplayer

Twelve Minutes
Shared: Indie · Adventure · Singleplayer

Kindergarten
Shared: Gore · Violent · Singleplayer

The Night of the Rabbit
Shared: Indie · Adventure · Singleplayer

Firewatch
Shared: Adventure · Indie · Story Rich

Critters for Sale
Shared: Gore · Indie · Surreal