Single-player games like Dark Old Sun II: Unspace
Below are 9 single-player Steam games similar to Dark Old Sun II: Unspace, 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 II: Unspace page.
Ranked picks
- 1
Sodaman
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action with Dark Old Sun II: Unspace.
Sodaman is a bullet-heaven roguelike where you play as a supersoldier fighting alien hordes with soda powers. Find game-breaking sodas and concoct custom cocktails. Discover planets, unlock weapons, sodas, cybernetics, power-up cards, and more. But first, crack open a cold one.
- 2
FatalZone
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
FatalZone is an auto shooter with roguelike and RPG elements set in a savage world of zombies. Exterminate zombie hordes, collect resources, upgrade your camp, and level up mercenaries. Humanity must survive at any cost!
- 3
ARRIVAL: ZERO EARTH
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
Fight giant War of the Worlds -style aliens invading Finland during a Winter in the 90's. Build an army of local townspeople in this chaotic semi-autobattler roguelike. Navigate through different biomes to obliterate the aliens from cosmic dimensions.
- 4
DunHero
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
DunHero is an Action Roguelike. Choose your class, level up and collect powerful items. Defeat bosses and free the world from evil in unique adventures. Play solo or with friends in up to 4-player co-op.
- 5
Space War: Infinity
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
Vertical semi-procedural shmup with upgrades, real-time enemy waves, and infinite replayability. Level up your ship, unlock 20+ weapons, defeat 5 bosses, and survive endless bullet-hell combat.
- 6
Nienix: Cosmic Warfare
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
Search for the legendary lost artifact Nienix through galaxies in conflict! An open world space action RPG adventure that can be played both alone and together!
- 7
Survivors of the Dawn
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action and Indie with Dark Old Sun II: Unspace.
A roguelite horde-survival bullet heaven with QUINTILLIONS of bullets over QUINTILLIONS of hordes. Mix weapons with items, modify, control chaos at terminals and break through tightening waves.
- 8
Deep Rock Galactic: Survivor
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action with Dark Old Sun II: Unspace.
DEEP ROCK GALACTIC: SURVIVOR is a single player survivor-like auto-shooter. Take on hordes of lethal aliens, mine riches, and unlock powerful upgrades to survive, as you wield the full arsenal of Deep Rock Galactic. It's one dwarf against all of Planet Hoxxes!
- 9
Dark Old Sun
Single-player alternative to Dark Old Sun II: Unspace — playable solo, no multiplayer required. Shares Action with Dark Old Sun II: Unspace.
A shoot'em up, with focus on choice and progressiveness, so you can choose between a wide selection of weapons, and upgrade them becoming way more powerfull as you play.Big multi-phase bosses and a dramatic story.