Games like Neonova
Games like Neonova include Elite Dangerous, Outer Wilds, EVE Online, X4: Foundations, and Kerbal Space Program. We matched them by the tags players give Neonova on Steam (Space, Exploration, Text-Based, Horror, and Space Sim): closest matches first, and among equally close ones the better-known games.
Elite Dangerous
Shared: Space · Exploration · Space Sim
Outer Wilds
Shared: Space · Exploration · Horror
EVE Online
Shared: Exploration · Space Sim · Space
X4: Foundations
Shared: Space · Exploration · Space Sim
Kerbal Space Program
Shared: Space · Simulation · Space Sim
No Man's Sky
Shared: Space · Exploration · Space Sim
DREDGE
Shared: Exploration · Lovecraftian · Horror
Kerbal Space Program 2
Shared: Space · Exploration · Simulation
Spaceflight Simulator
Shared: Space · Space Sim · Exploration
Empyrion - Galactic Survival
Shared: Space · Simulation · Exploration
Duskers
Shared: Exploration · Space · Typing
Voyager-19
Shared: Space · Horror · Exploration
Starfield
Shared: Space · Exploration · Space Sim
SOMA
Shared: Horror · Exploration · Atmospheric
Universe Sandbox
Shared: Space · Simulation · Space Sim
Prey
Shared: Space · Horror · Exploration
DEAD LETTER DEPT.
Shared: Horror · Typing · Simulation
PULSAR: Lost Colony
Shared: Space Sim · Space · Exploration
Stellaris
Shared: Space · Exploration · Simulation
Moons of Madness
Shared: Horror · Space · Exploration
Exo One
Shared: Space · Exploration · Atmospheric
X Rebirth
Shared: Space · Simulation · Space Sim
Avorion
Shared: Exploration · Space · Space Sim
Five Nights at Freddy's: Security Breach
Shared: Horror · Exploration · Robots