Single-player games like Dark Old Sun
Below are 9 single-player Steam games similar to Dark Old Sun, 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 Dark Old Sun page.
Ranked picks
- 1
INSPACE 2980
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
INSPACE 2980 is a stylish and dynamic SHMUP from the 16-bit era of games consoles and arcade machines. Take part in an exciting adventure and save the galaxy! Once again!
- 2
Syder Arcade
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Killing zombies never gets old, but sometimes you just need a break. Get back to some serious old-school gaming with Syder Arcade! Syder Arcade is a love letter to Amiga games of the ‘90s, no coins, no upgrade grinding, just your tenacity and a motherload of alien invaders.
- 3
Beat Invaders
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Beat Invaders is a Vertical Shoot 'Em Up Roguelite - Fight your way through enemy fleets, unlock skills, items, ships, and upgrade them in the next run. Enjoy the smooth neon visuals matching the pushing EDM soundtrack - The perfect game to unwind.
- 4
Earthion
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Earthion is a side-scrolling space shooter developed natively for 16-bit systems. Guide space fighter pilot Azusa Takanashi in her fight to repel the alien invaders and save planet Earth.
- 5
Galacide
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Command destructive spaceships to obliterate hordes of enemy vessels, while quickly solving puzzles to weave through networks of vibrantly colorful, adversarial machines!
- 6
Star Saviors
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Saviors brings the best bullet hell experience you can find on Steam. Play through 18 challenging stages in this ultimate test of tactics and reflexes.
- 7
Super Galaxy Squadron EX Turbo
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Super Galaxy Squadron is a fast-paced vertical shooter designed for human beings as well as SHMUP veterans. Featuring multiple game modes, a challenging but merciful difficulty curve, forgiving health system, and SEVENTEEN playable ships.
- 8
Bit Blaster XL
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Bit Blaster XL is a fast-paced, retro arcade shoot 'em up (shmup) inspired by the classic quarter-munchers of the ‘80s. Easy to pick up, hard to put down, boost, dodge, shoot, and chase high scores in this addictive, old-school action game!
- 9
Dark Old Sun II: Unspace
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
In Dark Old Sun II: UNSPACE, embark on an epic journey through a decaying universe. This exploratory roguelike features the looming threat of UNSPACE, as the mighty sun fades and humanity weakens. Equip various weapons that grow increasingly powerful.