Top similar games like Add Astra:

Mini Gal4Xy is a light strategy game set in space.

Gaia Project is the digital adaptation of the boardgame Gaia Project created by Helge Ostertag and Jens Drögemüller and published by "Feuerland Verlag". It is a 1-4 player strategy game. It plays in the same universe as Terra Mystica and continues the adventure in the far future.

Under Domain - Alien Invasion Simulator will surprise you with a Sci-fi turn-based game completely different from others. How about turning yourself into an Alien and planning an invasion to Planet Earth? You can secretly influence human history and build war machines to exterminate human beings.

Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!

Real-time strategy battles in amazing sci-fi worlds! Command brave soldiers, mighty mechas and powerful aliens to face the greatest challenges in hostile alien worlds. The galaxy needs you!

A ludo in the space, in which you play with aliens? What more you can ask for?

A gripping sci-fi interactive thriller that lets you shape your own character and his morality. YOU make the choices – and suffer the consequences!

Solve challenging nonograms! Another great adventure in Gizmoland is happening now!

Space adventures are waiting for you!

Solve challenging nonograms! The citizens of Gizmo Land find themselves in great danger after an attempt to celebrate Halloween goes very wrong.

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

Is a strategy game where you will take the role of a race called Terrans.

Planetary Strike is a chess-like competitive turn-based tactical strategy game where you assume the role of Commander. Guide your fleet of six unique ship types to victory by destroying the enemy’s planet while protecting your own.

Will you use the gravity of the planet or jump through a black hole? It’s up to you. Set an angle, speed and just watch how unsuspecting colonists fly through the space hoping, that they won’t end up flat as a pancake on some meteorite. Puzzle game with unique story will put your brain to the test.

The day has come… Humanity has been attacked by an alien race.You have space bases at your disposal. Use them to launch battleships and take over the alien mothership.

Sign up to be a galaxy trucker today! An adaptation of Vlaada Chvátil’s award-winning board game is now on Steam. Already includes the ALIEN TECHNOLOGIES expansion!

Taurus War is a Sci-Fi turn-based strategy game.Simple and quick to learn, even if you have no experience in turn-based games.Command your troops to conquer Taurus.Solemn promise: We will update this game for ten years!

Jump in the cockpit and combate the human fleet.M C is a mix of RTS and classic space shooter game.

From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.

Wage war on your friends and enemies in this simple and engaging strategy game. Easy to learn and quick to play, Mayhem Intergalactic is surprisingly strategic. Play against the computer, or duke it out with friends over the internet. The universe shall be yours!

A space-battling crew-managing deckbuilder where your crew are your cards. Deliciously destructible ships: carve apart enemy ships chunk by chunk. Design your ship to fit your play style and adapt to enemy strategies. Reclaim Earth in a hunt-or-be-hunted strategic campaign.

"Dino Drink" is a vibrant four-player board game where T-Rex characters race to the finish line, using skills like speed and fireballs. The game combines strategy and luck and includes a drinking element, making it a fun addition to game night.

Pixel Puzzles, your number one place for digital jigsaws.

Improve your life quality and add more spice to your life. This is a TRUTH-or-DARE-like game for everyone.

In this game, you are a leader, leading a force of army to fight other forces in the deep spaces. You will plunder their resources, build your homelands, explore and expand, managing your army both strategically and tactically. This will be a saga written with blood and fire.

Use your intellect to clear a pathway to the door. Push and pull boxes out of your way, and deactivate electrical barriers. Over 200 levels of brain-busting challenges. Give it a try. See if you can complete them all!

Puzzline is a 2-4 player board game connecting cards like a puzzle! Each card has a unique effect. Play them strategically and get the victory! Online play is also supported!

A colourful retro physics game for causal and pro gamers alike. Whizzing round the cosmos in your flying saucer dodging asteroids, black holes, cannon fire & assorted obstacles picking up crystals. Thrusting, dodging & speeding through the 30 obstacle filled levels.

Snipe your friends, electrocute your enemies and rain down acidic slime in the Barnard’s Star system, 6 light years from Earth. A multiplayer, turn-based tactics battler with no micro-transactions and no random chance — ingenuity is the only way to victory!

Destroy waves of UFOs in a arcade style space shooter with an array of powerful weaponry.

Space drone is a minimalist open world puzzle game with grid movement where you remotely control a drone to find and rescue your lost mates in space. Every movement spend energy, be aware to don't be without it!

Still reeling from the life-changing events of the previous episode, Gail seeks out a safe haven with her father in the Delta Pavonis system. However, she soon learns that the politics of Planet Leto can be as treacherous and unpredictable as the local weather.

Probability Race is a futuristic racing game. You must use logic, math, probability and luck to win the championship. Play a great variety of minigames and compete in turn based races every day. Unlock abilities and race your way to victory in this platform/stragegy/turnbased game.

Strange radio bursts have been detected! Embark on an immersive adventure as you analyze radio signals coming from space, decipher hidden messages, symbols, sounds, and translate alien languages. Follow an engaging story with countless dialogues and game-changing choices.