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

OKTORAID
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie and Casual with Bug Hunter.
A 2-player local co-op base-defense survivor. You're wired together by a power cable — stay close to share power and hit harder. Scavenge scrap, build a fortress of turrets and walls, then survive OKTO's endless robot siege. Fully solo-playable. Couch co-op & Remote Play Together.
- 2

Archaea Ascent
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie and Casual with Bug Hunter.
Undergo trials, build your identity, build a team, build your skills, fight the system. The operators are watching — and the directives are getting harder to follow.
- 3

Abyss Prowler
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie with Bug Hunter.
Abyss Prowler is an arcade inspired top-down arena shooter where you should always stay on the move to survive. Dash, reposition and strike. Demo is available.
- 4

Towerful Defense: A Rogue TD
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie with Bug Hunter.
A roguelike tower defense where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and unique effect items to craft powerful builds that lead you to victory.
- 5

Planet TD
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie and Casual with Bug Hunter.
6 different types of towers! 4 planets with different characteristics! 25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles! Snowy and Glacial maps, Desert and Arid lands! Prepare to defend the solar system against invaders!
- 6

最后的仙门 The last Practice Sect
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Casual with Bug Hunter.
The last Practice Sectis is a ink style tower defense game. The game combines Chinese mythological novels to experience that under the invasion of the devil, only the last immortal sect left. You recruit all kinds of human to resist the devil and maintain the last immortal sect of the human race.
- 7

Space War: Infinity
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie and Casual with Bug Hunter.
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.
- 8

Operation Octo
Single-player alternative to Bug Hunter — playable solo, no multiplayer required. Shares Indie with Bug Hunter.
Play as an Octopus scientist fighting off sunken skeletons in this frantic aquatic Tower Defense! Discover sea life turrets from unique biomes: Pistol Shrimp! Navy Seal! Death Ray! Deploy turrets whilst dodging enemy bullets as you venture the seven seas!