Single-player games like Project Sundive
Below are 8 single-player Steam games similar to Project Sundive, 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 Project Sundive page.
Ranked picks
- 1
Neon Armada - Solar Storm
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
A top-down arena roguelite you can learn in one wave and spend a hundred hours mastering. Waves close in from every edge; the shop between them decides what you become. 32 ships, 28 weapons, 115 mods to combine — then endless mode, where the caps come off.
- 2
Intergalactic Defenders
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
Intergalactic Defenders is a retro pixel art space shooter with rogue-like progression, handcrafted levels, deep ship customization, and intense arcade combat. Defend humanity against an alien invasion across the galaxy.
- 3
Astro Miners
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action and Indie with Project Sundive.
Astro Miners is a thrilling space action game: blast meteors to harvest resources, battle rival factions in their airspace, and survive anomalies and black holes. Exchange fragments for Credits to upgrade dual-weapon ships and unlock powerful modules. Purchase now and conquer the void!
- 4
INFINITER
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
Navigate the Geometric Void and survive against the hordes of creatures that lurk within the impossible space. INFINITER is an incremental action-rouguelike, where every run earns you progress towards becoming the most powerful being in the known universe.
- 5
Deadlokk
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
Deadlokk is a 1-3 player co-op roguelike. Explore sectors while fighting against other factions to upgrade your ships and carrier. Find rare weapons and upgrades to make the perfect build. Research your items to make blueprints and take them on your future Expeditions!
- 6
Xenoterrestrial
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
Unleash hell as a xeno-hating soldier aboard a ship being hijacked by a hitherto undiscovered alien race. Xenoterrestrial is a top-down technical shooter that combines skill and strategy for a fast-paced, challenging experience offering customizable weapons, complex mechanics, and diverse enemies.
- 7
Speglar
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action and Indie with Project Sundive.
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
Magnetar
Single-player alternative to Project Sundive — playable solo, no multiplayer required. Shares Action with Project Sundive.
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.