Single-player games like OrbGuard
Below are 8 single-player Steam games similar to OrbGuard, 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 OrbGuard page.
Ranked picks
- 1

Space Bross
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Strategy with OrbGuard.
Your chicken has been kidnapped, and that’s all it takes to send a retired astronaut into full galactic mayhem. Space Bross is a hand-drawn 2.5D tower defense & action roguelite where you’ll build bases, fend off alien hordes, and blast your way across planets to bring your feathery friend back.
- 2

ASHER Descent
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Strategy with OrbGuard.
Go down. Get stronger. Come back alive. Mine the mountain. Defend your shuttle. Adapt or get overrun.
- 3

VOID WARD
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Strategy with OrbGuard.
A minimalist roguelite tower defense with neon aesthetics. Defend your planet against infinite waves of geometric enemies. Buy 70 upgrades, activate abilities, chain combos and grow stronger between runs with permanent upgrades. Every attempt makes you stronger.
- 4

星际探索 Star Exploration
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Strategy and Casual with OrbGuard.
Plants vs. Planet Monsters is a sci-fi adventure game that blends survival, tower defense, and farming elements.
- 5

Skewer Squad
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Strategy with OrbGuard.
Skewer Squad is a cute yet chaotic tower defense roguelite. Step into the apron of a Grillmaster, draft random ingredients, mix wild seasonings, and build a squad of skewers that are both delicious and powerful to defend your grill.
- 6

Let Them Come: Onslaught
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action with OrbGuard.
Survive the relentless offensive of the alien horde in Let Them Come: Onslaught, a sci-fi survival roguelite. The pursuit of the perfect build and an ever-expanding arsenal of abilities are the keys to your success.
- 7

Void Miner – Incremental Asteroids Roguelite
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Strategy with OrbGuard.
Blast. Collect. Upgrade. Repeat. Void Miner is a retro-inspired roguelite asteroid shooter where you pilot a space ship and manage an automated tower to destroy endless fields of chaos. Dodge, blast, and harvest your way through waves of asteroids in a fast-paced loop of destruction and progression.
- 8

Genome Guardian 2
Single-player alternative to OrbGuard — playable solo, no multiplayer required. Shares Action and Casual with OrbGuard.
COMBINE WEAPONS in the microscopic shooter with macroscopic depth. BUILD YOUR NANOBOT from hundreds of parts. SURVIVE the microbial onslaught once more in this psychedelic dive to the Abyss, full of mutations, minerals, anomalies and powerup polyps. SHMUP mode turns it into a vertical shoot 'em up!