Top similar games like Colloblast: Kingdoms of Cosmos:

A classic single-player RTS set in a Solar System ruled by megacorporations. Journey from Mars all the way to Planet 9 and uncover the secrets of the BlackChain.

Get ready to protect the entire solar system from an unprecedented threat - the D'Ahari, a race of insect-like aliens. Control an entire fleet of spaceships, trade with other races of an Alliance, and develop your own space station.

This is a prologue for the main game Grimstar - a single-player real-time strategy game with a story-driven campaign. The sudden death of your brother has hit you hard. However, the corporation for which he has sacrificed his life requires you to take his place until his contract is fulfilled...

Bite size colossal battle! Build an army in minutes as infantry upgrade with orbital drops into war machines! Then combine those machines to form the giant Mantlet mech! All while bullet hell rages! In a transhuman future, command Mantlet One to secure New Terra!

On a forgotten world, confront a malevolent machine intelligence. Extract minerals, build factories, power up the railguns, and arm the missile batteries. Defend the Fortress Omega against the alloyed nightmare.

Space Tales is a sci-fi RTS where you build fortified bases, manage resources, and command retro-futuristic armies. Adapt to deadly alien factions, capture huge monsters and turn them into powerful allies as humanity fights to survive among the stars.

Build, trade, and survive in a living ecosystem where every choice shapes the colony and every faction remembers. Deep systems connect production, management, and survival in a world that never stops reacting.

“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!

Element is a realtime strategy space game for people who don't have time to play realtime strategy space games. Generate energy, mine element, build attack and defence units, and destroy the enemy while maintaining a balance between earth, air and water.

Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop. Build towers, shape them with branching upgrades, and figure out how to hold the line.

A story-driven sci-fi RTS. A signal buried under sixty years of noise draws a Singularian expedition into the Veil, where something faster tears the hyperdrive apart mid-jump. Gather, hold the line, and push into the hive toward an ancient artifact. Two asymmetric factions, one crash landing.

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!

Wonder Defense: Chapter Earth is a strategy game based on Earth and Aliens in which you act as a General to accomplish survive and move to Mars.

"A sci-fi strategy game"

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!

As an Artificial Sentience, transform The Hotel—a derelict customizable spaceship—into a beacon of hospitality for six alien Factions. Master the Action Hex, expand your Neural Network, and explore spectral entity hauntings in this deep sci-fi management game.

Automatons is 1v1 Player vs Player turn-based strategy game. Build the infrastructure to spawn autonomous robots with customizable weapons and logic to fight and defeat your fellow employee and destroy their base. Do you have what it takes to become employee of the month?

You are the commander of the Black Talons company, currently stationed in the Oberon system. After an eventful campaign, the military Tzanar Union has overrun the planet of Genai and blocked all departure from the system: leaving you and the Black Talons stranded.

Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!

Buzz Wars is a wasp and bee themed strategy and fighting game with multiple playable units, various paths to win and multiple maps. Face off against other players in the multiplayer mode, or compete with AI opponents. Find your strategy - are you more a builder, a fighter or both?

Join our machine legion to conquer the world.

Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!

Hyperwar is an RTS game with many classic elements such as base building, research, unit production and resource gathering, but it also contains new approaches and ideas. Paired with modern graphics and a freely moving camera, this game is a completely new experience in the genre.

Dying Hope is a space marine RTS centered around base building and survival. Set in a post apocalyptic future you command a cohort of humanity's remaining military personnel designated as Earth's final hope on an alien outpost planet.

The next major game in the Planetary Annihilation universe, Industrial Annihilation combines the iconic real-time strategy of the beloved Annihilation games with deep factory-building to deliver a blend of genres unlike any you’ve experienced before.

Astro Industry Wars is a lighthearted, futuristic real time strategy game with base building, economic production chains, colorful worlds, and lots of vehicles.

Titan: The Ascension is a colony management strategy game on Saturn’s moon Titan. Build and expand an off-world industrial colony, extract ice to produce water for Earth, trade resources, and defend against ancient automated systems that react to technology growth. Will you prevail?

A strategic space tower-defense game. Enemies detect, warn, and try to bypass defenses, forcing you to adapt. Combine diverse towers and face unique maps for varied battles. With tense sci-fi atmosphere, it delivers a fresh experience beyond traditional tower defense.

Frontier Control: Invasion is a Real-Time Strategy survival game in which you play the commander of a human space colony under the attack of outer space robots. Build your base, train your colony, and fight herds of enemies and bosses.

A harsh sand planet has become the stage for a brutal war between three Great Clans. For the power over rare minerals each wants to prove their superiority. In the heat of dynamic battles with the enemy's troops, be prepared to face and attack giant Sand Snakes.

Block Strategy is an RTS Base Defence roguelite with a fully destructible world. Build your base and find fuel to power your reactor before you're overrun by an onslaught of enemy robots.

A unique take on factory building — design and optimize flowing 3D systems where routing and space are your most valuable resources. Start with guided challenges, then expand into an endless sandbox focused on efficiency, scale, and layout mastery.

In this massive RTS game, command vast armies fighting for control of entire worlds. Control the forces of Earth, the mechanical AI Substrate, or the enigmatic Post-Human Coalition as you battle across the solar system in single player, cooperative multiplayer, or competitive multiplayer.

Defend galaxy against Alien invasion in the RTS offline game with roguelike fun

All that matters is that you're a spaceship captain. Your objective is to explore the far sector. Build, develop, and research. Get to the bottom of the targets of your mission and find out the truth of what happened before it.