Top similar games like Port Aphelion:

It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!

In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.

HAS Galactics is a top-down factory builder. Design your own rocket, automate your production lines, balance your reputation between the Galactic Factions and complete daring missions. Start from a humble beginning… to a thriving galactic mega-factory!

As CEO, build your corporate empire! Design space-efficient factories in a grid-based puzzle system. Fund cutting-edge research to optimize production, master complex supply chains, and dominate a living interstellar economy.

Manage an interstellar spy business in this strategy game with lunchbreak-length runs. Release your inner math-nerd to manipulate statistical odds for stealing data and technology. Build a galaxy-wide espionage network, partner with megacorporations or sell their secrets to bankrupt them. Profit!

Asteroids are worth trillions. They're also spinning at 200 meters per second. You are a Wrangler—harpoon tumbling rocks, wrestle them to a dead stop with your custom-built ship, and mine them for credits. The pay is good. The survival rate is a conversation people avoid.

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.

Survive against a relentless horde in a single-player space sandbox blending factory automation, RTS combat, and deep RPG progression. Pilot humanity's last ark, the Mothership, on a desperate mission back in time to build a fleet powerful enough to change the destiny of the galaxy.

Cosmonautica is a fresh take on space trading in a procedurally generated universe, paired with quirky humor for your intergalactic enjoyment.

Run a galactic pirate syndicate from a single screen. Raid ships, loot cargo, capture crew, and grow a fleet that raids in parallel while you watch. An incremental space-pirate idle game with tactical raids, a reputation-based black market, and a legendary endgame.

Welcome to Resort Galactica, a hotel simulator set in space where you design, build, and manage an extravagant resort among the stars. Care for your guests based on each species' individual needs. Expand your hotel with restaurants, leisure centres, and entertainment floors.

Space Sim Tycoon – A sandbox transportation tycoon game where you can explore forbidden planets, gather resources, craft goods, and establish routes to manage your space empire.

A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.

As head of an interplanetary corporation, your goal is to extract resources from across the solar system and bring them home faster and cheaper than your competitors. Construct trade depots and colonies. Build rockets and spaceports. Master realistic orbital mechanics and maximize profits.

🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!

Haul cargo, hunt bounties, upgrade your ship and get paid in a gritty lo-fi universe. Hand painted graphics, procedural generated star systems that can be navigated, story campaign mode or huge open-world.

Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.

Build orbital factories, mine asteroids & trade with aliens in this deep space strategy game! Research tech, manage production chains, and choose: peaceful trade or combat when mysterious ships arrive. The ultimate industrial space empire simulator!

Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.

Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.

Dive into a hardcore space station simulation and overcome the unforgiving environment of space. You must build and manage your station under the pressures of life, economics, and thermodynamics. Rise to power through economic leverage or ruthless military might. 

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!

HIRED STARS is an isometric single player RTS game in an open, randomly generated sandbox universe. You take control of a small mercenary force. Plunder trade routes, attack pirates, fight the Empire or follow the story. Conquer or buy new ships and equipment. Recruit new captains and level them.

Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.

Build and automate your own industrial space empire. Mine asteroids, manage logistics, expand production lines with drones and conveyors, explore new sectors through wormholes, and grow your mining operation across the galaxy.

Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.

Factory management and sandbox base building in zero-g environment. Survive, expand and then dominate space industrial market. Build large scale resource processing plant completely from nothing.

Build floating automated rigs in a volatile gas giant. Extract elements, synthesize compounds, and descend through atmospheric layers in this sci-fi systems-builder focused on chemistry, engineering, and survival.

Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.

Calling Home is an exciting sci-fi simulation resource management game that draws heavily from games in the factory-building and exploration genres, providing a thrilling mix of building your base, researching, factory management, puzzle solving, exploration, and resource gathering.

Live your medieval trader life! Buy low, sell high and explore the world! Buy ships, build businesses, find or train captains. Deal with pirates, manipulate mayors and challenge traders. React to hundreds of events that shape your very own procedurally-generated world!

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.

Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?

Deep Space Outpost is a space station building & survival game, involving resource and base management. Build your space station tile by tile, mine asteroids, refine materials and keep your station operational.

One More Turret is an automation and tower defense strategy game with interesting innovations. Gather resources and enemy loot to construct intricate factory while defending against relentless monster waves. Can you strike the perfect balance between production and defense?