Single-player games like Astraeus
Below are 14 single-player Steam games similar to Astraeus, 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 Astraeus page.
Ranked picks
- 1

AI War: Fleet Command
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
- 2

Sins of a Solar Empire®: Rebellion
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
- 3

EVERSPACE™
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Indie with Astraeus.
EVERSPACE™ combines fast-paced combat with roguelike elements, great visuals and a captivating story. It takes you on a challenging journey through an ever-changing, beautifully crafted universe full of surprises. Shoot, craft and loot your way to victory while the odds are stacked against you.
- 4

Overload
Single-player alternative to Astraeus — playable solo, no multiplayer required.
A new six-degree-of-freedom shooter with intuitive controls, amazing lighting and graphics. From the creators of Descent, Overload is the best zero-gravity robot-blasting combat ever.
- 5

SPACECOM
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat.
- 6

Distant Worlds: Universe
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy with Astraeus.
Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.
- 7

ENDLESS™ Space - Definitive Edition
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy with Astraeus.
ENDLESS™ Space is a turn-based 4X strategy game, covering the space colonization age in the ENDLESS™ Universe, where you can control every aspect of your civilization as you strive for galactic domination.
- 8

Synth Riders
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Indie with Astraeus.
Let the music move you in Synth Riders, a dance-action VR rhythm game with custom song support and a thriving multiplayer community!
- 9

Ironlights
Single-player alternative to Astraeus — playable solo, no multiplayer required.
Ironlights is a VR dueling game with skillful, fluid melee combat. Parry, block, and strike down your opponents using a variety of physics-based weapons. Test your skills in multiplayer battles, or fight to the top of the league in the huge single-player campaign!
- 10

Auralux: Constellations
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
Auralux: Constellations is the awaited sequel to Auralux, the critically acclaimed minimalistic Real Time Strategy game. Explore a dozen new gameplay mechanics through each constellation, one new feature at a time. It's Real-Time Strategy, deconstructed.
- 11

Darknet
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
Darknet is a strategy/puzzle game in which you play as an elite hacker in the Net. Plug into cyberspace, using viruses, worms, and exploits to steal the data before your signal gets traced. Includes both VR and non-VR versions.
- 12

Tactera
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
Tactera is a Real-Time Strategy game played on a “virtual tabletop”. Comes with VR (Rift/Vive) and non-VR versions! Inside a futuristic war room, a 3D hologram shows two armies on the verge of battle. Build swarms of gunships, tanks, bombers, and other units to strategically outmaneuver the enemy!
- 13

Skylight
Single-player alternative to Astraeus — playable solo, no multiplayer required. Shares Strategy and Indie with Astraeus.
Skylight is a turn-based tactics game of colossal space battles, with VR and non-VR versions. Command nimble squadrons of fighters, specialized frigates, and giant capital ships as you orchestrate your forces toward victory.
- 14

IRONSTRIKE
Single-player alternative to Astraeus — playable solo, no multiplayer required.
IRONSTRIKE is a 4-player co-op roguelike featuring physics-based swordplay, gestural spellcasting, and archery. Wield a sword, bow & arrow, or magic, and customize your build as you fight to rescue the gods of a vibrant fantasy world.