Dive into Astronaut Assault, a third-person Sci-Fi tower defense game, and battle against relentless enemy waves in diverse arena settings. Arm yourself with an array of turrets, traps, and gadgets to halt, hinder, and outmaneuver your foes.
We are not affiliated with IsThereAnyDeal.










Step into the boots of a lone astronaut and defend your base in an immersive third-person tower defense game! Without weapons, rely solely on strategic tower placement and swift maneuvers to fend off waves of relentless enemies targeting you. Each escalating wave promises heart-pounding action and suspense, challenging your survival skills to the limit. Prepare to face hordes of robots, aliens, and RPG style boss fights. Are you ready?


The player has no weapon. Instead, build turrets around the arena to defeat the incoming waves of enemies.

Each level uses unique turrets that fit the theme of the environment and have unique abilities. All will be needed to ensure victory!

Scour the arena for traps and items to pick up and use against your enemies. These range from bombs, stun traps, slow fields, and more!

Encounter unique, RPG style boss fights where the player must balance their play between building up a strong turret defense, dodging enemy abilities, and achieving necessary goals to obtain victory.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.










Step into the boots of a lone astronaut and defend your base in an immersive third-person tower defense game! Without weapons, rely solely on strategic tower placement and swift maneuvers to fend off waves of relentless enemies targeting you. Each escalating wave promises heart-pounding action and suspense, challenging your survival skills to the limit. Prepare to face hordes of robots, aliens, and RPG style boss fights. Are you ready?


The player has no weapon. Instead, build turrets around the arena to defeat the incoming waves of enemies.

Each level uses unique turrets that fit the theme of the environment and have unique abilities. All will be needed to ensure victory!

Scour the arena for traps and items to pick up and use against your enemies. These range from bombs, stun traps, slow fields, and more!

Encounter unique, RPG style boss fights where the player must balance their play between building up a strong turret defense, dodging enemy abilities, and achieving necessary goals to obtain victory.
Dive into Astronaut Assault, a third-person Sci-Fi tower defense game, and battle against relentless enemy waves in diverse arena settings. Arm yourself with an array of turrets, traps, and gadgets to halt, hinder, and outmaneuver your foes.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.