Single-player games like Astrox: Hostile Space Excavation
Below are 8 single-player Steam games similar to Astrox: Hostile Space Excavation, 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 Astrox: Hostile Space Excavation page.
Ranked picks
- 1

Astrox Imperium
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Adventure with Astrox: Hostile Space Excavation.
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
- 2

Vanguard Galaxy
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Simulation with Astrox: Hostile Space Excavation.
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
- 3

Galactic Mining Corp
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Adventure with Astrox: Hostile Space Excavation.
Galactic Mining Corp is a unique rogue-lite, action game with crafting and base building mechanics. Head into uncharted space and discover a universe of locations to exploit for riches! Use your profits to expand your HQ, hire a crazy work force, obtain new drill components and upgrade everything.
- 4

Rebel Galaxy
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Adventure with Astrox: Hostile Space Excavation.
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
- 5

Drifter
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Simulation with Astrox: Hostile Space Excavation.
Drifter is an open-world sandbox space trading game with a procedurally-generated galaxy 100,000 light years across made up of tens of thousands of star systems to explore and features an original soundtrack by composer Danny Baranowsky.
- 6

Star Explorers
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Adventure with Astrox: Hostile Space Excavation.
Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race. An all-inclusive (admittedly janky) procedural space-sim made by solo developer Schmidt Workshops.
- 7

No Man's Sky
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Adventure with Astrox: Hostile Space Excavation.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 8

Core Keeper
Single-player alternative to Astrox: Hostile Space Excavation — playable solo, no multiplayer required. Shares Indie and Adventure with Astrox: Hostile Space Excavation.
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.