Games like Astronaut Assault
Games like Astronaut Assault include Space Engineers, ARK: Survival Ascended, Oxygen Not Included, Dune: Awakening, and The Riftbreaker. We matched them by the tags players give Astronaut Assault on Steam (Tower Defense, Survival, Sandbox, PvE, and Building): closest matches first, and among equally close ones the better-known games.
Space Engineers
Shared: Sandbox · Survival · Building
ARK: Survival Ascended
Shared: Survival · Building · Sandbox
Oxygen Not Included
Shared: Survival · Building · Base Building
Dune: Awakening
Shared: Survival · Sandbox · PvE
The Riftbreaker
Shared: Tower Defense · Survival · Base Building
Terraria
Shared: Survival · Sandbox · Building
ASTRONEER
Shared: Survival · Space · Sandbox
V Rising
Shared: Survival · PvE · Base Building
Valheim
Shared: Survival · Building · Base Building
7 Days to Die
Shared: Survival · Base Building · Building
Scrap Mechanic
Shared: Survival · Sandbox · Building
Avorion
Shared: Sandbox · Building · Space
ICARUS
Shared: Survival · Base Building · Building
The Planet Crafter
Shared: Survival · Building · Base Building
No Man's Sky
Shared: Survival · Space · Sandbox
Starbound
Shared: Survival · Sandbox · Space
Enshrouded
Shared: Survival · Base Building · Building
Once Human
Shared: Survival · Building · Exploration
RimWorld
Shared: Survival · Sandbox · Base Building
Rust
Shared: Survival · Building · Sandbox
Empyrion - Galactic Survival
Shared: Survival · Space · Building
Space Haven
Shared: Survival · Space · Sandbox
HELLDIVERS™ 2
Shared: PvE · Third-Person Shooter · Space
Dyson Sphere Program
Shared: Space · Building · Base Building