Top similar games like Signals of Outer Space:

Wield full control in this sci-fi tactical turn-based game, featuring skill progression. Create the ultimate build, specialise in different ability classes, and overpower your enemies. Take control of the charismatic mercenary, Cowboy in the far future as he brings down an insidious corporation.

XCOM: Chimera Squad delivers an all-new story and turn-based tactical combat experience in the XCOM universe.

Constellation Tango is an interstellar 3D turn-based strategy-tactics game. Organize and lead troops to victory in battles across planets. Push back against an oppressive empire to save the galaxy, while making new allies of various species.

Lead a band of space pirates and loot and pillage your way across the stars in this turn based tactical game!

Retro sci-fi tactical turn-based strategy with an exciting storyline. The Albatross space liner is overrun by lizard-like monsters that can infect humans and turn them into their own kind. Save the passengers and defeat the hostile creatures.

Warhammer 40,000: Battlesector is a fast-paced turn-based strategy game set in the grimdark universe of the 41st Millennium. Pick your force, develop your army, field mighty heroes and fight for victory using superior strategy, awesome abilities, and devastating weaponry.

Board the enemy spaceship while defending your own in turn-based tactics. Outmaneuver foes, chain creative combos, and if you see a better way, rewind and take it. Push for greater rewards, so you’re ready for the tougher enemies ahead. But be aware of the enemies that are pushing back right now!

braverBOTS is a turn-based strategy game like no other. Assemble a team from your fleet of BOTS, battle and defeat opponents in short online matches, and become champion of the Galactic BOTS League.

A sci-fi turn-based stategy game, where you settle, terraform, and invade other planets. Replay with different species, each offering a unique experience for robots, aliens, humans, or insects.

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.

Streak of Power is a turn-based strategy game of precise laser duels. Aim your laser strategically, use gravitational satellites that alter its path, and seize control of them. Outsmart your opponent and destroy their base before you’re hit.

In the cyber-future of 2009, the most popular sport has become arena fighting. Challengers from all over gather to attempt to conquer gauntlets of robotic opponents for fortune and fame.

The XCOM: Enemy Unknown - Slingshot Pack is Now Available!

Lead the SOF squad and defend the world against alien invasion! Engage in thrilling turn-based battles and uncover the mysteries of enigmatic extraterrestrials. Your time has come – join the fight and safeguard our future!

Silent Storm from leading Russian developer Nival is a true 3D tactical turn-based Role-Playing-Game set against the backdrop of WWII. As the conflict rages on the frontlines, you’ll be leading a small multinational squad behind enemy lines to gather information and wreak havoc on your enemies while trying to thwart a mysterious new...

Worms makes an explosive leap into tactical roguelike combat! Battle across destructible arenas, mod classic weapons and unleash devastating strategic combos as you fight for survival, riches and glory!

Turn Based strategy, more fun than chess. Play it. With a vibrant and supportive community, every battle is not just a conquest, but an experience shared among friends.

Sci-fi turn-based strategy on procedurally generated planetoids. Expand your base, deploy and upgrade units, negotiate alliances, and conquer each unique world. Simple rules, deep tactics. Easy to learn, hard to master.

Incredibly dynamic turn-based strategy, reviving the traditions of the old school tactics. Lead a team of the most desperate fighters, destroy alien monsters and uncover the secrets of the lost planet.

Command a mighty fleet of battleships. Upgrade and customise your ships with powerful modules, and traverse the cosmos to outmanoeuvre and defeat your opponents in this strategic single-player card game.

Neura Mechanicus is a turn-based squad tactics game where you operate robot squads in tournaments, each with unique abilities, upgrades and different game mechanics. Enter a cyberpunk world full of strange homemade robots and challenging teams vying to be the best at tournaments.

High-stakes starship combat on a hex grid. Outmaneuver your enemies, unleash devastating firepower, or swarm their capital ships with fighter squadrons. Every decision counts.

Underwater Wars is a tactical turn-based strategy game that takes place in the depths of the ocean. Two powerful factions of people are fighting a war for territory and resources, but everything changes when mysterious "Aliens" enter the conflict.

Beyond is a sci-fi turn-based strategy game set in a generated solar system that orbits a distant star every round. Play as one of five alien species as you race to collect resources, build your military, develop new tech, expand the area you control, and drive opposing factions from the system.

Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!

Turn-based tactics & strategy about an elite mercenary squad with an old-school action-movie vibe. Command Sparta: recruit distinctive fighters, upgrade your base, run missions, and decide Africa’s future—no point-blank misses, with real ballistics.

RagTag is a unique blend of action and strategy that puts you in control of a RagTag group of humans, mutants, animals and cyborgs as you fight from extinction across the stars. RagTag has simple mechanics that allow complex manoeuvres and trick shots to dispatch your enemy.

Turn the tide of the war with nuanced strategies in One-inch Tactics, introducing players to a unique turn-based strategy experience.

There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city.

A retro turn-based tactics game where you have to find the one simulation to save the earth from its impending death. Control your army of robots to fight TERRAs on their mission to destroy the last remaining chance of terrestrial life.

In a galaxy where luck does not exist, command a fleet of 18 ships in this chess-like turn-based strategy game. Seize the enemy planet, earn rank medals, climb skill tiers, build your win streak, forge your clan's legacy, and dominate global leaderboards. Every turn is a calculated battle of wits.

Epsilon Protocol is a sci-fi turn-based tactics game with a rich story and refreshing visual style. Set in a reality where the Epsilon controls everything after they discovered light-speed travel. Take control of a team of rebels pushing against Epsilon's forces.

You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.

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!

Final Theory is a 4X-lite turn-based strategy game where you command fleets of battleships engaged in a galactic civil war. It presents an exciting experience for both veteran players and those new to the genre. It features innovative combat mechanics but also hearkens back to some of the classics.