Top similar games like Cosmos Defense:

Exo TD is a true 3D space Tower Defense. Invaders have scouted your planet as their next target, you must protect it by building destructive turrets, orbital defenses, shields, drones and more to defend against the incoming invasion force.

DangerSpace is a blend of thrilling space sim and tense RTS gameplay. The deliciously heavyweight, physics-driven flight engine gives a new gaming experience.

Hex Defense is a virtual reality tower defense game. Engage in combat defending your base in this inmersive tabletop world. Setup your defenses, manage and modify them according to the situation. There are 6 different biomes to defend, 9 turrets to access, 17 upgrades to be made, and more...

Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

You were born a feudal lord. Not bad, right? However, in "Diplomacy Is Not An Option" your lot is not so great. Because your castle is always under siege. Get ready to defend against hordes of enemies and win a battle of epic scale.

Noble Armada: Lost Worlds is a moddable real-time strategy PC title based on the Noble Armada miniatures game. Set in the Fading Suns Universe, where the suns themselves are dying, humanity battles to revive its lost greatness, or just take what is left.

Stardust Exile is a MMORTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics. The remaining star systems are procedurally generated based on currently known data. You can create your own ship designs with an in-game ship generator.

After the destruction of the EARTH in 2150, the leaders of the Eurasian Dynasty escaped on board an evacuation fleet. Now they are fighting for the survival of the human species. Their base is one large building comprising of smaller variable parts.

Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...

Engage in the construction of your station from a variety of different modules. Create your space fleet. Protect your base from enemies...

Manage a space station, flying through a procedually generated universe, fight, build and survive in the coldness of space.

Moduwar is a unique take on Real-Time Strategy. Take control of a Modu - an alien creature with an ability to grow different organs, split and merge them, depending on your playstyle. Take on mysterious creatures, and explore unique strategies in both single-player and multiplayer modes.

Dive into intense, fantasy, tower defense action! Using turrets, spells, and your cunning, you must defend your kingdom against an onslaught of enemies launching a surprise attack while the king is away.

This is more than just an odd looking strategy game, it is a strategy platform. Genetically engineer amorphic creatures & buildings, in real time, in an endlessly open world that adapts to your playstyle. Share, and even battle your designs. How much will they be worth?

Shadow Corps is a turn-based tactics game where you command a squad of elite soldiers on a mission to stop an ancient danger. Fight your way across the galaxy, craft and equip your troopers with cutting edge gear and use cunning tactics to defeat your foes. Are you ready to take command?

Escape From The Red Planet simplifies resource management, tower defence, and first-person mechanics into a singular arcade experience. On the latest mission to Mars, the Orion III crash-landed. With Martian attacks looming, Houston most definitely has a problem!

Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.

A classic RTS in VR with simulated physics. Move your units by throwing, stack units to increase their power. Gather resources, build a base and an army, expand across the map and defeat your enemies.

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

A unique tower defense game. Where you design and build your defense block by block. With many component that can be combined for different effect. To survive in a hostile world.

Space strategy gaming reimagined. Dive into fast-paced real-time planetary battles against the backdrop of a turn-based campaign that sees you build your empire in the stars. With hundreds of troops and ships at your command, can you forge an empire that lasts?

Control two characters simultaneously! Survive, gather, collect upgrades, fight all sizes of one-eyed Martians, build defensible outposts and conquer Mars, in this glorious mix between roguelite and tower defense.

Build, Explore, Fight. Build a ship of your imagination, explore the vast cosmos, and fight for your stake in the galaxy.

Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.

TD Heros' is a virtual SLG + tower defense battle game with the Three Kingdoms as the background. It achieves the hegemony of the unity of the world by upgrading cities, building appropriate buildings, upgrading arms and training generals.

Astra Exodus is a single player turn based Sci-fi 4X strategy game inspired by the classics, with a multiple choice narrative driven epic campaign, top down real time tactical battles and an extensive semi-randomized research grid.

《The Galaxy》是一款以塔防为核心玩法的游戏。在游戏中，玩家将扮演一位能够在宇宙中“看到”航道的探星舰船长，体验和一众美少女船员探索星空，并和各种各样的宇宙生物战斗的故事。

Peasant Uprise sets a group of peasants on a deadly quest against the new lord that has taken over their province. Unskilled in the arts of war, they will use their only known skills and tools to regain control of the Province of Swayne.

A tower-defense game with roguelite elements on fully explorable mini planets! Travel the galaxy of Vyrosa, land on planets, and defend your drilling equipment while mining fuel to continue your journey throughout the galaxy!

TEP the destroyer is a single player tower defense game where you will face alien monsters and ships in ground and space battles! Your strategy will decide the fate of your people in a sci-fi environment of varying difficulties!

Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.  

Take the position of a CEO of a space transport company and become a new major player in the industry. Space Company Simulator is a realistic management sim game that will challenge your planning skills as you strive to launch the first manned mission to Mars.

A Tower Defense-Storytelling game about fighting against healthy foods!

The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.