Games like Nonstop
Games like Nonstop include Oxygen Not Included, This War of Mine, The Escapists, RimWorld, and FTL: Faster Than Light. We matched them by the tags players give Nonstop on Steam (Simulation, Survival, Strategy, Sci-fi, and Cats): closest matches first, and among equally close ones the better-known games.

Oxygen Not Included
Shared: Survival · Resource Management · Simulation

This War of Mine
Shared: Survival · Strategy · Simulation

The Escapists
Shared: Strategy · Simulation · Crafting

RimWorld
Shared: Survival · Strategy · Simulation

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Space

Factorio
Shared: Strategy · Resource Management · Survival

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Strategy · Space

Planetbase
Shared: Strategy · Survival · Simulation

Banished
Shared: Simulation · Strategy · Survival

Stellaris
Shared: Strategy · Sci-fi · Simulation

The Alters
Shared: Survival · Sci-fi · Strategy

Space Haven
Shared: Survival · Strategy · Simulation

Dyson Sphere Program
Shared: Simulation · Space · Resource Management

IXION
Shared: Strategy · Survival · Space

Frostpunk
Shared: Survival · Strategy · Resource Management

Spacebase DF-9
Shared: Simulation · Sci-fi · Strategy

Stranded: Alien Dawn
Shared: Survival · Simulation · Strategy

No Man's Sky
Shared: Survival · Sci-fi · Space

Frostpunk 2
Shared: Survival · Strategy · Simulation

Sheltered
Shared: Survival · Strategy · Resource Management

Tin Can
Shared: Simulation · Survival · Sci-fi

Don't Starve Together
Shared: Survival · Crafting · Simulation

Forager
Shared: Survival · Crafting · Pixel Graphics

Empyrion - Galactic Survival
Shared: Simulation · Survival · Space

