Top similar games like Astro Protocol:

Conquer the galaxy in this arcade-like strategy game. Pick and send your generals to deploy the fleet in the far-off star sectors, mine resources, and upgrade your ships forgeries. Deities might interfere with your plans.

Entrotria is a turn-based space 4X strategy game with distinctive resource management. Explore exotic systems and acquire powerful technologies. Exploit your planets, trade with other races and destroy those who stand in your way.

Explore the galaxy, discover and colonize new planets to acquire enough resources. Design your ships, choosing from different hulls, weapons, shields, and several devices. Once you advance with technologies, new systems will be available, and you will have to update your designs.

Space Empires I is the first chapter of the Space Empires series. A classic galactic conquest and turn-based strategy video game where you are the leader of a race of intelligent beings building large spaceships for interplanetary and interstellar travel through warp points between star systems.

Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.

The third game within the Space Empires series brings the dawn of a new age of exploration. Your race keeps running through the fabric of space and moves to other solar systems beyond your own.

Politon: A turn-based strategy game that will push your strategic and management skills to the limit! Expand your territory, strengthen your economy, and outsmart your enemies by planning your strategy carefully.

Timeline is a turn-based strategy game where you can play through the human history from stone age to modern times. In the game you command wide range of units, make them collect resources and build buildings, towns and cities, explore the map and meet other players controlled by AI.

Voyage Router is a "navigation-based roguelike" where you explore procedurally generated terrain guided by your map. Adapt your route as the environment and conditions change, and visit as many target points as possible.

Empis is a turn-based strategy game that focuses on short and sweet multiplayer matches. Choose from individual factions each with their own unique units and upgrades, unlock technology, and build sprawling cities with buildings and fortifications.

A sci-fi turn-based strategy that will make you immerse yourself in a new world.

Turn-based strategy in a space Sci-Fi setting. Capture star systems, fight in tactical battles on hexagonal maps, upgrade your mother ship, discover new technologies and conquer the entire galaxy!

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.

Alliance of the Sacred Suns is a sci-fi grand-strategy RPG that begins with your coronation as the head of an interstellar Empire, and ends with your demise. Manage feuding noble houses and the schemes of would-be usurpers as you try to revive the glory of an Empire on the brink of collapse.

Build an empire in a single sitting. All the strategy of a classic 4X in a faster format, which also shines in multiplayer.

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.

Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.

Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!

Guards of the Gate is a roguelike turn-based game on hexagonal fields. You control a team of heroes aka Guards of the Gate, who are trying to save the world from the evil Dragon Lord.

In history, many brilliant civilizations faced annihilation due to the invasion of powerful empires, leaving only sighs of regret. In a fictional world, you will take on the role Guardian of Civilization. Can you help these civilizations grow and thrive, resisting the invasion of formidable enemies?

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!

Braveland is a turn-based game inspired by old-school strategies with hexagonal battlefield. You will start as a humble warrior's son whose village was cruelly raided and will end as talented commander of your army.

Trade, Build, Spy, Negotiate, and Battle for total control of the galaxy's riches. Become the backbone of galactic commerce in a grand strategy universe ripe with opportunity for exploitation and conquest.

Nyassembled! is a simultaneous turn-based tactical RPG with a plan-action system. Build your modular mechs, command electronic cats, and explore a procedurally generated world.

A roguelike base builder about founding your tiny new dino nation. Balance between growing charming cities while defending against massive empires in this tight but comforting turn-based strategy game.

A turn-based strategy game based off the Napoleonic Wars! Lead, attack, buy, and communicate. Learn how to play difficult 4x grand strategy games by starting with simple strategy. *Disclaimer, this game is made by a teenager for a school project*

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.

BoC is a historical 4X strategy game. Play on diverse planets with climate simulation and non-linear progression over the last 60,000 years of human evolution. Develop your own ancient civilization starting as a nomadic tribe from the last Ice Age.

Unbox Tactics is a rogue-like, turn-based tactical game where you command a team of characters, each unboxed with unique skills and abilities. Strategically plan your moves and assemble the ultimate party as you take on intense, tactical battles.

Mini Gal4Xy is a light strategy game set in space.

Conquer. Build. Survive. A tactical strategy game on procedural hex grids - intense, deep. Plan every move: establish your base, secure supply lines, and unleash suppression fire against all who stand in your way. Research new technologies - improve your units. Play solo, co-op, or PvP.

Forge your Kingdom amidst the Ruins of Rome in this turn-based 4X strategy game! As the world crumbles, rebuild civilization and shape your people’s destiny. Unleash your strategic prowess, conquer provinces, and crush all who stand in your way.

Roam the galaxy, destroy enemy ships, and encounter special events as you explore! Make smart decisions with your dice rolls in order to survive. Buy upgrades at Galactic Bazaars, unlock new ships, and manage your fate in the cold expanse of space. Your choices decide your destiny!

Take command of humanity’s last survivors and rebuild an empire in the stars. In this immersive turn-based strategy game, you will have to fight to protect your people, control rival factions, and unlock lost technology.