Games like Apollo Lunar Mission
Games like Apollo Lunar Mission include Elite Dangerous, STAR WARS™: Squadrons, Slime Rancher, Thief Simulator, and No Man's Sky. We matched them by the tags players give Apollo Lunar Mission on Steam (Adventure, Simulation, Space, First-Person, and Historical): closest matches first, and among equally close ones the better-known games.

Elite Dangerous
Shared: Space · Simulation · First-Person

STAR WARS™: Squadrons
Shared: Space · VR · Simulation

Slime Rancher
Shared: Adventure · First-Person · Singleplayer

Thief Simulator
Shared: Simulation · Singleplayer · First-Person

No Man's Sky
Shared: Space · Adventure · First-Person

Starfield
Shared: Space · Singleplayer · First-Person

Microsoft Flight Simulator X: Steam Edition
Shared: Simulation · Adventure · Singleplayer

ADR1FT
Shared: Adventure · Space · First-Person

X-Plane 11
Shared: Simulation · Singleplayer · VR

BONEWORKS
Shared: VR · Adventure · Singleplayer

Kingdom Come: Deliverance
Shared: Singleplayer · Adventure · Historical

Hardspace: Shipbreaker
Shared: Space · Simulation · Singleplayer

Kingdom Come: Deliverance II
Shared: Adventure · First-Person · Singleplayer

Crime Scene Cleaner
Shared: Simulation · First-Person · Singleplayer

Outer Wilds
Shared: Space · Adventure · Singleplayer

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Singleplayer · VR

Kerbal Space Program
Shared: Simulation · Space · Singleplayer

SPORE™ Galactic Adventures
Shared: Simulation · Adventure · Space

IL-2 Sturmovik: Battle of Stalingrad
Shared: Simulation · VR · Historical

Contraband Police
Shared: Simulation · First-Person · Singleplayer

Slime Rancher 2
Shared: Singleplayer · Adventure · First-Person

The Solus Project
Shared: Adventure · VR · First-Person

Forza Horizon 5
Shared: Simulation · Adventure · First-Person

Trailmakers
Shared: Space · Adventure · Singleplayer