Top similar games like Astronaut Assault:

Build traps. Fight bots. Survive the waves. Die Robot is a stylized third-person tower defense game where you defend a mysterious Data Seed from waves of robots, the Carbonites. Mix real-time base building with fast-paced combat in a strategic fight for survival.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Eden Star is a fast paced Sci-Fi survival game that blends unique physics based combat, destructible environments and free-form construction with the exploration of a hostile alien world.

Discover a still unexplored region of space: the Exot galaxy. With your C.L.I.C. as your only ally, obtain the resources necessary for your survival. Develop your ship, improve your workshops, face creatures to conquer these hostile lands.

Hostile Mars is a Factory-Building game focused on Combat! Explore an open world and discover new tech, unlocking powerful weapons and structures. Create efficient supply chains using delivery bots. Salvage destroyed enemies for resources. Design your base to withstand increasing waves of enemies!

Farm, Build, Defend, in the Galaxy's only Arcade-Tower-Defense.

Small game in Tower Defence genre with elements of shooter. Kill Replicators all by yourself or make perfect defence with different turrets.

Control a Nanite body from a space station to gather Nanite resources on Earth, seized by a rogue AI. Build and fortify your dropbase with turrets and defenses, fight waves of robotic enemies, and collect Nanites for extraction, balancing fast FPS combat with strategic tower placement.

Defend the furnace from waves of goblins by building and upgrading in an FPS tower defense.

Survive on an open-world island with unlockable abilities that help you on your journey in Gengu Survival. Craft new items as you level up and build your own base wherever you want. But be aware, there is something strange on this island...

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, and defend your stronghold against relentless attacks. In this action-packed block-builder, survival is earned, and only the strongest will remain.

In Cosmic Remnants, you find yourself adrift in space with only a floating platform. Alone or with friends, survive by scavenging resources, upgrading your platform, and enhancing yourself with discovered body parts. Explore advanced bases and uncover the truth behind humanity's demise!

Tremble of Towers combines resource management, strategic building, and CO-OP team-based action into an exciting free-to-play tower defense experience. Join the fight, mine your way to victory, and defend your precious gold!

Pilot a heavily armed drone to obliterate relentless zombie hordes in this intense action-strategy game. Defend your base, upgrade your arsenal, and experience the ultimate undead-smashing thrill.

section for a game where players need to survive from wildlife, mine resources, craft items and structures, and even form tribes:

A survival adventure game where players explore vast stages, solve puzzles, and find treasure while avoiding or battling enemies. Limited resources and inventory management require strategic play, offering tension and challenge without horror elements.

Bandit the game is an open-world RPG with unique quests, character development, intense combat and interesting exploration. With optional elements: tower defense, city/base building and gang management.

Adventure a hand crafted open world inspired by pirate tales! Sail the seas, explore dangerous islands, plunder your enemies' booty, gather treasures, and build your hideout. Stay on your guard, some pirate legends.. may not be just legends!

Cryowakers is an exploration and survival game that takes place in a randomly-generated futuristic world. Play solo or with seven other players to explore, survive, build, and fight to uncover the truth behind the cryosleep experiments.

Manny TD is a hybrid tower defense and third-person shooter with random in game elements. Join and get your personal high score!

Take over a disfunctional Waste Management Facility on a distant planet. Build incinerators, recyclers, robots, turrets, and more. Battle vicious creatures on the planet's surface with powerful weapons!

A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.

SpaceMine is a third-person tower defence game where your mission is to defend your mining operation by building towers and barriers to hold off waves of local fauna and collect enough resources to meet the company's quota.

Land on a new planet as a space refugee. Craft items, build bases, and battle aliens to survive. Pioneer your future in this online survival RPG.

VALDIS is a thrilling blend of third-person shooter and tower defense. Protect the Laboratory Core from waves of mutants, place turrets, build barriers, and uncover the tragic story behind twisted experiments. The battle for freedom begins!

Start to play in the open world to master the game! For another day is a new world that need to be discovered from scratch by you.

Triton Survival is an open world survival game about exploration, construction, engineering, and fighting on planets. Embark on this interstellar adventure and conquer the galaxy. Are you ready?

Hatch, evolve, and upgrade powerful space creatures in this action-packed sci-fi 3rd person shooter that reinvents the monster taming genre!

Defy the Gods and protect your Village in a 3rd person action and tower defense hybrid. Use the days to build your defenses and the nights to repel the Executors trying to lay waste to your Home. Endure the wrath of Gods solo or with friends in a unique mix of strategic planning and frantic action.

Break Free is a fast paced third person sci fi shooter game. The creatures that live among us have made the Earth uninhabitable for human life. You are mankind's best hope for survival. Make no mistake, war is coming and you shall die today, then you shall live to fight again tomorrow.

This is a survival game in a city that has been captured by gangs. Survive, develop, explore a huge city, craft, build bases, fight gangs and other players for resources.

For the Stars invites you to explore and settle a vast universe of diverse planets, each with its own unique wonders and mysteries to uncover. Conquer the challenges of hostile biomes, forge alliances, and build a legacy that spans the galaxy.

A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!

Embark on a sci-fi survival adventure on Halley's Comet as a retired astronaut on a top-secret mission. Build, manage limited resources, and survive the desolate space environment to complete your mission.