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
Space Elite Force
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Gear up for an intergalactic thrill ride! Space Elite Force is a frenzied space-shooter packed with weapon customization and epic boss battles. Take command of your ship and fight for the survival of humanity!
- 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
REMOTE LIFE
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Remote Life is a 2D Side scrolling space shooter (shmup) for PC. Experience a fast paced action game with insane scary graphics, and hyper jump into a brutal-frenetic-techno-alien world. Free the world from this dreadful nightmare before its nauseating breath of horror destroys mankind.
- 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
Starr Mazer: DSP
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
The UNFP's been kicked in the teeth by a G'ell invasion force and their last and only hope is a planetary outpost and its fleet of experimental DSP MkI Forward Assault Fighters and anyone marshal enough to strap into one and forcefully accept some apologies.
- 6
Star of Providence
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Star of Providence is a top down action shooter with procedurally generated elements. Explore a large, abandoned facility in search of incredible power, fighting dangerous foes and gaining new weapons and upgrades as you progress.
- 7
Nex Machina
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Nex Machina is an intense arcade style twin-stick shooter from Housemarque. Taking hints from both Robotron and Smash TV, Nex Machina focuses on pure action, voxel destruction and competition in the distant, cablepunk themed future.
- 8
Super Hydorah
Single-player alternative to Dark Old Sun — playable solo, no multiplayer required. Shares Action with Dark Old Sun.
Super Hydorah is a nonlinear horizontal shoot’ em up designed to offer a challenging experience, sublimating the richness of traditional shmup classics. Face the menace of the Meroptians aboard the Delta Lance, alone or with your friends in this game with direct action and nostalgic art.
- 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.