Top similar games like Astrosembler:

Galactic Command Echo Squad SE is a high-end and very challenging space/planetary combat game. It offers a thrilling campaign, instant action combat sessions as well as a sandbox mode allowing you to explore the game's universe while battling hostile Insurgent forces among others.

Lost Away is a first-person survival action game set light-years away from our solar system. After a spaceship crash, the protagonists find themselves the lone survivors on a mysterious planet where nothing is quite as it seems.

Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.

The classic first person shooter from Crytek is back with the action-packed gameplay, sandbox world, and thrilling epic battles you loved the first time around – now with remastered graphics optimized for a new generation of hardware.

Survive the alien arrival in DISTANT VISITANT, a top-down open-world sandbox. Master talents from marksmanship to cooking while managing hygiene and hydration. Adapt to seasons where winter freezes crops and lakes. Craft, build, hunt, and find survivors. Prepare for them, this is just the start.

In the far future, armadas from surrounding systems have suddenly waged war on Earth. You are a pilot from the Ares Squadron, flying the fastest, most dangerous crafts ever made. You're outgunned, outmanned, and strapped into a flying coffin.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Adapt to Survive — An epic story thrusts players into an ever-changing environment, forcing them to adapt their tactics and approach to conquer battlefields ranging from newly frozen jungle to zero-gravity alien environments. Suit up! — A high-tech Nanosuit allows gamers to augment their abilities in real time on the battlefield.

Hardcore survival game set in a frozen harsh ambient

In the anarchic world of Freeman: Guerrilla Warfare, only the mightiest warlord rules. Start with a pistol and a few militias, you will set yourself on a wild and ambitious journey towards world domination. Enjoy the immersive combination of intense FPS and sandbox strategy.

Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.

Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!

Another Earth: Gaming Grid is a delightful virtual world, empowering players to be creators with the tools to expand the universe. In this ever-evolving world, our goal is for players to craft their own stories and meaningful experiences for others.

Guide the Glorgorians in terraforming an alien world by influencing weather systems and building megastructures. Physics-based planetary weather simulations drive climate shifts as you develop resources and expand your colony towards interstellar travel.

Produce weapons, automate your production, and complete contracts to gain more money and expand your factory. A war is waging against the aliens. You will need to support the war effort by producing an ever-increasing amount of weapons. And always stay ready to defend your factories.

Discover a whole new world with Mars City Builder! Construct roads, erect buildings customize the city and take care of its safety. After all, you are the first Martian settler and this is a vast, unknown land. Develop it in any way you please!

Colonize rich planets with vegetation or deserted moons. Build a functional and prosperous colony. Take care of your colonists. Experience adventures on distant worlds or build a colony on planets in our solar system.

In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.

Fight till you can't then fight some more! A space combat simulator with survival crafting elements.

You act as a weapon genius and create ever new types of weapon with better specifications.

Stand on guard of global safety, wage wars no one hears about, or start new ones. Once you have been a soldier. Choose between justice and money. Now you are a… Professional Soldier.

Tank, action and shooting game, where does it start your new adventure in a world of science fiction and interplanetary wars...

Base building simulator 1500 years in the future. Journey to the Island of Enen to forage, craft, build, hunt, meditate, and explore across three vast biomes. Discover secrets and create the retreat of your dreams. With over 160 unique items to gather, craft, and build, every home will be unique.

See yourself stuck in the middle of an ever growing virus epidemic. Find or craft weapons and tools to fight against the living and the dead. Build a safe place to survive in this cruel, apocalyptic world.

Maia is a colony building game set in the not-so-distant future. Your colonists make planetfall on a hostile world and you must ensure their survival and their safety, constructing their off-world habitat from almost nothing and sheltering them from a dangerous, often deadly environment.

Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.

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.

Volition's classic is back. Descent: FreeSpace is the quintessential old school space shooter. With a deep story, great graphics and engaging battles against fighters to capital ships it keeps you moving. Breakout that flight stick and enroll with the Grand Terran Alliance today.

Echoes Below is a tactical first-person shooter set in an unforgiving open-world survival environment. Build and fortify your base, craft essential gear, and recruit companions to fight alongside you. Explore a hostile archipelago, hunt for resources and engage in intense firefights.

A first person shooter and tower defense blend where players defend against waves of robots. Play alone or with friends to design paths, build towers, and upgrade weapons to protect key areas!

Pirate Commander is survival/strategy game. You will have to take care of the crew and their physical and mental health, food, drinking water, medicine, weapons and ammunition. Find treasures, fight enemies from different factions and terrifying sea monsters.

On a future post-apocalyptic Earth, build, craft, and loot other players’ bases to survive long enough to board the rocket and escape the dangerous robots and mercenaries that inhabit Ararat Island. Manipulate the weather and use earthquakes to change when the server wipe occurs in DYSTERRA!