Single-player games like Critical Descent
Below are 8 single-player Steam games similar to Critical Descent, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Critical Descent page.
Ranked picks
- 1

A-Spec First Assault
Single-player alternative to Critical Descent — playable solo, no multiplayer required. Shares Action with Critical Descent.
Fly corvette-class warships. Engage in combat operations against fighters, frigates, cruisers, and more dangerous foes. Choose the ships, weapons, and improvement modules, your group will deploy with. Use tactical command decisions to overcome dangerous encounters with unrelenting enemies.
- 2

Mars Horizon
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
- 3

Only One Burn
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Land the craft without crashing. Oh, and you only get one burn!
- 4

Final Orbit
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Master the cockpit of highly realistic spacecraft in this Newtonian physics based sim. Take off from surface to space, plot a course between the planets and dock with space stations. Trade commodities or take shipping contracts to buy upgrades and optimize your build - every choice matters.
- 5

Sylph
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Operate a spacecraft at the edge of a singularity. Use realistic orbital mechanics and Newtonian physics to explore a star system around a black hole and what lies beyond.
- 6

Mars First Logistics
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!
- 7

Enter The Moon
Single-player alternative to Critical Descent — playable solo, no multiplayer required. Shares Action with Critical Descent.
Space simulation moon game. Explore the moon, mars, venus and mercury in breathtaking real-time 3D. Explore their geological aspects. Battle against spaceships or a secret lunar base. Enter the ISS. Measure the moon. And get in the cockpit.
- 8

Reentry - A Space Flight Simulator
Single-player alternative to Critical Descent — playable solo, no multiplayer required.
Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.