Top similar games like Grimstar: Welcome to the savage planet:

Grimstar is a real-time strategy game with a story-based single-player campaign. Your brother's sudden death has hit you hard, but the laws of the corporation for which he laid down his life dictate that you must take his place until his contract is fulfilled...

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.

World order is revolutionary sci-fi real-time strategy, the main feature of which are modular units

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 grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.

Subzero Tides is a sci-fi colony builder set on Europa moon. Build a self-sustaining colony, harness geothermal vents for power and manage colonists. Experience a compelling blend of exploration, survival, and strategic decision-making.

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.

Take command of the world's military elite and liberate planetary resources. Fabricate bases, train soldiers, build a mechanized army and rid the planet of powerful enemy combatants and mysterious alien threats.

Ratten Reich is an RTS focusing on realistic combat in a unique, steampunk/dieselpunk world ripped apart by an ongoing war between rats, mice, cockroaches, and lizards.

Ardent Seas blends modern naval combat with classical RTS gameplay. Featuring three unique factions, supporting a variety of playstyles.

A casual and relaxed strategy game that is easy to play, yet difficult to master. Counter enemy waves by building and upgrading the right units. You make the decisions, the rest happens automatically. Set in a sci-fi theme with more than 30 unique units and 70 unique upgrades to choose from!

Beyond Astra is a real-time 4X sci-fi grand strategy game. Expand your own civilization, explore captivating and mysterious planets and star clusters, interact with your citizens and other life forms and shape your destiny through nearly infinite possibilities.

Fight in the endless war for resource in the vast universe. Explore the galaxy to find resource-rich planets, defeat enemies stationed in, mine planets, expand your power and conquer the galaxy. Become the greatest conqueror of the universe right now.

Solar Wave is a cosmic opera 4X strategy game with indirect control. Capture systems, develop the economy, trade, explore the world, summon powerful fleets, and watch them incinerate the enemies of the Solar Empire.

An RTS base builder with constant production and minimal micromanagement, where you direct fleets of autonomous ships in huge battles. Features a singleplayer story campaign with 3 playable factions, plus a roguelike gamemode and level editor. Test your abilities in the shifting tides of the Spance.

Embark on an epic journey into the infinitesimal in this photorealistic strategy game. Play as a fearless ant and guide your colony through the dangers of the forest.

Hell of Men: Blood Brothers is a real-time strategy game, developed by one person, in which you will have to collect resources, build your base, train your army by choosing your soldiers wisely and fight.

You will have to lead the civilization, develop the economy, enhance the technology, stabilize the people and colonize new galaxies; when encountering unknown civilizations, will you hide yourself or communicate with them in a friendly way? In this "dark forest", every decision will be crucial.

2089 - Space Divided is a classic science fiction real-time strategy game in which you collect resources, build up your base, train troops and destroy your opponents with tactical skill.

Space Tales is a real-time strategy game set in a retro-futuristic environment. Take on the role of a commander in the Intergalactic Planetary Expansion (I.P.E.) and immerse yourself in a thrilling mission to explore and conquer new planets, pushing the boundaries of the Human Empire.

Command an interstellar empire in this 4x grand strategy game and direct your civilization's development through the cosmos. Expand into the galaxy, colonize star systems, exploit resources, and build your empire to greatness. Care for your citizens with benevolence or rule with military conquest.

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.

Defend entire planets against hostile invaders in this full 3D tower defense game. Manage resources and space while constructing weapons, defenses, and structures to withstand the destructive onslaught across multiple planets.

A sci-fi real-time strategy game. An existential war among asteroids in classic RTS style. Build and defend, produce and upgrade, attack and annihilate!

Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.

A global strategy for the 21st century. The threat of nuclear war, economic inequality, overpopulation of some regions and extinction of other regions, the crisis of capitalism... Find your solutions to the current problems of mankind!

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!

Stand as humanity's shield against relentless waves of cosmic foes in this gripping sci-fi tower defense game. Employ advanced weaponry and deploy strategic defenses to repel enemy hordes across the galaxy's expanse. Can you withstand the onslaught in Galactic Frontiers?

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?

Carrier Command 2 is the real-time strategy game that puts you in command of a futuristic carrier capable of deploying a vast array of aircraft and amphibious units. Compete against AI or human players and hop into every single vehicle to take matters into your own hands!

HARD VOID is a 4X turn-based space strategy game in a lovecraftian universe. Lead your species across galaxies and multiple dimensions to build an Empire. Design your spaceships, assemble your fleets and fight for supremacy. But beware, unthinkable Eldritch horrors lurk in the vast darkness.

In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.

Grey Galactic is a real time strategy game in space where you build up your planets and ships to conquer your enemies. Develop your planets and fleet of spaceships to destroy your enemies and take over the galaxy! Do you have what it takes to become the best Fleet Captain the UFMC has ever seen?

You are in command of the human fleet, searching for asteroids to mine, extract resources and build bases and more ships to defeat aliens invaders. This simple and short action RTS has a full and exciting campaign, and a skirmish mode that allows you to play a different mission on every match.

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.

You have been commissioned to collect and research space minerals by destroying asteroids near your space shuttle. With your growing inventory of materials and new knowledge you build additional modules on your shuttle continuously expanding it into a self sustaining space station eco system.