Games like Starman in space
Games like Starman in space include Russian Life Simulator, Superflight, Mountain, House Flipper, and Goat Simulator. We matched them by the tags players give Starman in space on Steam (Action, Indie, Casual, Simulation, and Memes): closest matches first, and among equally close ones the better-known games.

Russian Life Simulator
Shared: Simulation · Memes · Indie

Superflight
Shared: Indie · Casual · Action

Mountain
Shared: Indie · Simulation · Casual

House Flipper
Shared: Simulation · Singleplayer · Casual

Goat Simulator
Shared: Simulation · Casual · Indie

Sparkle 2 Evo
Shared: Indie · Casual · Action

Deliver Us The Moon
Shared: Indie · Action · Space

Passpartout: The Starving Artist
Shared: Casual · Indie · Simulation

Retrowave
Shared: Indie · Casual · Action

Solar 2
Shared: Indie · Casual · Space

Crime Scene Cleaner
Shared: Simulation · Singleplayer · Action

Chinese Parents
Shared: Simulation · Casual · Memes

Streamer Life Simulator 2
Shared: Simulation · Casual · Action

Unpacking
Shared: Casual · Relaxing · Indie

Potion Craft: Alchemist Simulator
Shared: Simulation · Singleplayer · Indie

Plague Inc: Evolved
Shared: Indie · Simulation · Singleplayer

Kerbal Space Program
Shared: Simulation · Space · Indie

FEMINAZI: The Triggering
Shared: Indie · Action · Casual

House of the Dying Sun
Shared: Action · Indie · Simulation

Ship Graveyard Simulator
Shared: Indie · Simulation · Action

Papers, Please
Shared: Indie · Simulation · Singleplayer

KovaaK's
Shared: Action · Simulation · Indie

There's Poop In My Soup
Shared: Casual · Indie · Memes

Master Of Pottery
Shared: Indie · Casual · Simulation