Top similar games like Astra Sentinel:

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

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.

From Glory To Goo is a Sci-Fi Survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.

Build a city on the back of a Space Whale and learn to coexist as you journey through the stars. Manage intricate supply chains and the needs of your people as you build outposts, meet aliens, and uncover the mysteries of the universe.

Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.

Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?

Defend against interdimensional (wow!) monsters in this open field (huh?) tower defense game.

Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?

IXION is an unrelenting, city-building odyssey across the stars. As Administrator of the Tiqqun, DOLOS’ prototype space station, you are tasked with balancing preservation and exploration as you manage infrastructure, resources and crew. Can you keep the flame of humanity alight in the cold dark?

Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.

Guide pioneering settlers among Venusian clouds in this space colonisation city builder. Grow food, collect energy, mine resources, balance buoyancy and weight to stay afloat in the treacherous Venusian atmosphere, and build a self-sufficient colony while navigating storms and acidic clouds.

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.

Construct and manage your colony anytime, anywhere, any device!!!!

Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.

Terminal squad: swarmites is a game with indirect control where you must erect a chain of buildings, which generate resources for construction or the combat units for destruction of an enemy.

The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.

In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.

Build and expand your very own settlements in high mountains! Carefully plan production chains and satisfy various needs of your three-caste society while dealing with mountain hazards such as weather breakdowns and avalanches. Are you skilled enough to make your town thrive?

Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.

New Cycle is a city building game with focus on survival. After an apocalyptic series of solar flares, human society has been thrown into disarray. Establish a settlement and develop it all the way from humble beginnings to industrial metropolis.

Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.

Hostile Mars is a factory-building game focused on combat! Explore an open world and discover new tech to unlock 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!

A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...

There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

Repterra is a base-building survival game set in a world overrun by dinosaurs. Fend off massive hordes while building your colony. Manage resources, breed your own dinos, and research genetic mutations to survive in this dino-infested land.

Dive into the sunken world. Face the dangers of the deepness. Build a colony and make it thrive. Conquer or explore the unknown, you decide which way you choose.

After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!

The Caribbean Sea, your sea, has been the home of true freedom for ages. Calico Jack, William Kidd, and many other great pirates had sailed these waters in the past.

Spacebase Startopia captivates with its original mixture of economic simulation and empire building strategy paired with classic RTS skirmishes and a good dose of humor.

Prepare for your journey to Mars by building and managing a colony within the safety of Earth’s atmosphere. Hone your abilities to create a thriving community, terraform the land to suit your needs, and prove your capability for a larger mission. Get ready to launch in this prologue to Farlanders.

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.

Experience the mysterious and mystical by taking on a journey with Mims in this strategic god-like game. Create structures, plant vegetation, breed animals, take care of your minions, use divine PSI powers, triumph in face of natural disasters, fight monsters, predict the future, and so much more...

Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.