Single-player games like ACCRETION
Below are 8 single-player Steam games similar to ACCRETION, 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 ACCRETION page.
Ranked picks
- 1
Magnetar
Single-player alternative to ACCRETION — playable solo, no multiplayer required. Shares Casual with ACCRETION.
Magnetar is a top-down space shooter set in a unique physics-based environment packed with opportunities and hazards where you'll need all your skill to survive. Collect credits to upgrade ships and allies. Features 50 campaign levels and endless random levels.
- 2
Drone Core Command
Single-player alternative to ACCRETION — playable solo, no multiplayer required. Shares Casual with ACCRETION.
A sci-fi VR gallery shooter where you and your mech battle through hostile alien territory. Upgrade your drone choosing between human‑engineered firepower or drone‑targeting tech. Strengthen your arsenal with remote recon runs and mech repairs as you push deeper into the planet’s contested frontier.
- 3
Spelp
Single-player alternative to ACCRETION — playable solo, no multiplayer required.
The SPELP program needs YOU to annihilate thousands of aliens with a variety of weapons, members and unique capacities. Unlock characters and make up your own team to fit your playstyle.
- 4
SPASE DEFENSE
Single-player alternative to ACCRETION — playable solo, no multiplayer required.
Stranded on a far flung planet, hold out for rescue against alien foes with a variety of guns, lasers, and explosives.
- 5
Star Legion
Single-player alternative to ACCRETION — playable solo, no multiplayer required.
Star Legion is a local co-op top-down shooter where you battle rogue machines in intense missions. Craft gear, survive hostile incursions, and reclaim sectors to spread the glory of the intergalactic Roman Empire.
- 6
Unearthing Invasions
Single-player alternative to ACCRETION — playable solo, no multiplayer required. Shares Casual and Early Access with ACCRETION.
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
- 7
Speglar
Single-player alternative to ACCRETION — playable solo, no multiplayer required. Shares Casual with ACCRETION.
Frantic 4-player laser ricocheting top-down shooter. Keep it casual and enjoy the chaos, or master the surprisingly deep mechanics to obliterate your enemies. Duke it out locally in free-for-all or 2v2.
- 8
PUFIWEHO
Single-player alternative to ACCRETION — playable solo, no multiplayer required. Shares Casual with ACCRETION.
Protecting Us From Incredibly Worrisome Extremely Hostile Oddities...is what you will be doing with your football! Defend the Earth from the invading disciples of the Deranged Octopus, and learn the ultimate secret of the Universe.