Top similar games like Grimstar: Prequel:

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...

Astro Industry Wars is a lighthearted take on the RTS genre featuring distinct unit types, base building, economic production chains, and customizable unit rosters.

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.

Step into the world of galactic combat in "WarOS", a Chinese sci-fi game! It creates its own structure, integrating the core gameplay of RTS with the details, plot and growth system of RPG, simplifying complex micro-manipulation, and making the game experience both fun and exhilarating.

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.

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.

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.

RTS base builder with constant production and minimal micromanagement. Direct fleets of autonomous ships in huge battles. Features a singleplayer story campaign with 3 distinct playable factions and many subfactions, and full level editor. Test your abilities in the shifting tides of the Spance.

Take command of powerful armies with intuitive player controls and classic RTS features and feel. Control powerful super-weapons and elite units through a 21-mission campaign. Continue the fight on 16 skirmish and 8 unique survival maps.

Frontier Control: Invasion is a Real-Time Strategy defense 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.

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.

Set on Europa in 2224, Subzero Tides blends near future hard science with unique long horizon geoengineering, economic realism and corporate diplomacy, offering a fresh alternative to grounded, post collapse survival scenarios.

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.

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

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.

Space Tales is an epic space opera that delivers the tactical complexity of classic RTS gameplay within a universe where ancient horrors lurk beyond the stars. Follow Xander's journey from a loyal Inter-Planetary Expansion (IPE) soldier to a champion who uncovers the darkest secrets of the cosmos.

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!

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.

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

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.

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

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 sci-fi, 4X, real-time strategy game. Build, fight, and explore to survive against an unstoppable alien threat. Carry the fight from one galaxy to the next as you battle back from the brink of extinction, and unlock the secrets of the past to restore your people to the path of galactic super power.

Stellar Reach is a 4X sci-fi strategy game where you control a faction vying for dominance across a hostile galactic frontier. Guide your empire through conquest, prosperity, or industrial power as you advance through six distinct tech trees and forge your path to victory.

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!

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.

Eons of War is a survival RTS with indirect control. Build a colony for autonomous spaceships, terraform and protect planets from star radiation, and survive against the waves of enemies from the mysterious Rift.

Tyrium is a real-time strategy game where you build a base, collect the valuable mineral Tyrium, and command tanks, rocket launchers, and infantry. Fight for map control, upgrade units, and experience two campaign levels. More content and game modes are coming soon!

Incarnus Warfare is a classic real-time strategy featuring moderate-scale unit combat and base building. The game focuses heavily on immersion in every aspect. Forget the real world around you, and once again, become a commander of a military task force, just like in your childhood.

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.

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?

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

Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.

On the cosmic frontier, humanity has fought alien species for a century. As traditional defenses fall to new-gen alien mechs, tech giant ShellMobile—human-centered at its core—kindles new hope via breakthroughs in extraterrestrial titanium ore research.