Top similar games like Interstellaria:

Sublunar is a Sci-fi, Puzzle, Strategy game, where the goal is to convert settlements over to your faction, by performing missions and strategic upgrades, while fending off bandits and subsiding revolts.

Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.

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

Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!

Amidst powerful alien empires, you are among the first humans in this corner of the procedurally generated galaxy. Trade and explore. With no combat, your success hinges on mastering complex alien economies and navigating intricate politics. Can you carve out a place for humanity in the cosmos?

Colonize a galaxy in 256 colors! In this RiscOS gem from 1997, the fate of human civilization lies in your hands. Travel the stars, claim uninhabited planets or fight over them against your alien opponents. Your ultimate chance to relive the original experience, on the PC for the first time ever.

Blend of planet system exploration, discovery, real time space combat, together with player needing to maintain and upgrade his space ship to overcome numerous obstacles. An experience quite unlike other games in its genre.

Explore, trade and fight your way through Massive Galaxy, a point and click narrative adventure set in bustling cyberpunk cities, deserted wastelands and beautifully crafted space habitats

Cosmo's Industry is a point-and-click, inventory-management adventure where you run an old, run-down shop that was abandoned by its previous owner. With the facilities damaged or lost entirely, it's your job and pleasure to recover as much as you can while satisfying the needs of your customers.

Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.

Noble Armada: Lost Worlds is a moddable real-time strategy PC title based on the Noble Armada miniatures game. Set in the Fading Suns Universe, the five Royal Houses dominate human space as they battle each other for control of the greatest resource... humanity itself.

Gate Builders is a sci-fi turn-based 4X strategy game. Build space stations, manage work force, exploit, trade and transform resources. Face space pirates and enemy factions. Build, Expand, Thrive!

Star Trek: Voyager - Across the Unknown is a story-driven survival strategy game in which the fate of the iconic starship is in your hands. Take the helm, manage the ship and resources, and make difficult decisions. Will you be able to bring home the ship and its crew?

Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.

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.

The essence of the Heliconian is to manage a mixed crew of renegades aboard the starship Heliconian. Manage the crew member’s actions and the ship’s functions to survive as long as possible while exploring the star system in the hopes of earning upgrades and ultimately a safe haven.

Embark on an Interstellar Odyssey! Captain your own starship amidst a network of bustling transit stations, ferrying passengers of diverse species. Upgrade your vessel, navigate volatile interspecies relations, and avert cosmic chaos in this thrilling sci-fi saga!

3030 Deathwar is a unique mix of Adventure and Space Sim. Explore star systems, mine and hunt pirates in top-down mode. Leave your ship and switch into classic Adventuring mode, where you explore derelicts, talk to shady characters or head over to the space bar for a drink.

Regain control of planet oasis and defeat your opponent! Build your base, monitor the economy, manage your resources, explore the Map, and plan attack and defense. Build 9 different buildings and 19 different units with various abilities and win the chaotic Robot Battles.

Engage in real-time battles with customizable space warships. Explore the galaxy, forge alliances, develop powerful ships, and defeat alien invaders.

Wax Heads is a cozy-punk narrative sim about working in a struggling record store. Chat to quirky customers with unique tastes, explore a handcrafted record collection, fall in love with bands (and their drama!), or just slack off with your colleagues - whatever gets everyone’s groove back!

Outscape is everything you love about traditional strategy games, but places your empire within a vast online galaxy alongside other real players. Outscape rewards skillful long-term strategic gameplay with a brilliantly refreshing new take on the 4X genre.

Spacero Origins is a third-person sci-fi RPG where you build your place in the galaxy. Explore star systems, land on alien worlds, shape the galaxy’s politics, missions, ship upgrades, crews, reputation choices that define allies, enemies, and opportunities with strategy.

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.

AstraX is a side-scrolling action game about flying ships that can destroy everything in their path.

What do you do if you are the only one left aboard a spaceship? Your team has embarked on a mysterious expedition a few years ago, the ship’s machinery has started acting up and it seems there are ghosts wandering about. Luckily, the black hole above you doesn’t pose any problems…yet.

Terra is an atmospheric real-time strategy game that combines 4X elements with a procedural universe. Wage war, engage in diplomacy, and discover hidden characters and the mysteries of the universe through the eyes of one of 5 unique factions.

Embrace the call of the cosmos! Take the helm as a fearless Soviet space explorer. Explore, trade, defend and manage your fleet while meeting a diverse array of interesting aliens.

Drill into the depths of a meteor crater in this incremental adventure. Mine ores, unlock upgrades and find the cosmic treasure that lies below! Can you uncover what happened to the Moles that came before you?

Are you curious to discover what lies beyond our planet? Accompany Bean on his space mission and discover an endless number of adorable creatures called Puddies that will have to be trained. Launch yourself into the unknown or you launch him.

Star Armada is a spaceship auto-battler where you assemble and command a fleet of capital ships and fighter squadrons. Unlock powerful new ships and outfit them with a range of turrets, energy shields, and starfighter hangars. Engage in automated battles, carefully timing unique abilities to win.

Don't Let Me Fade is an interactive adventure about memory, identity, and loss. Piece together fragments of a life - even if a simple teddy bear is the last symbol of connection to oneself in a world without time.

"Who is Yoko?" Unlock the mystery as you control Locke, Jeanne and Primus to discover the secrets of their existence in this point and click, cyberpunk noir adventure.

A grizzled private eye in a sci-fi adventure takes a murder case no one else will touch. He’s seen it all before, but nothing’s prepared him for a conspiracy that leads off-world. Something big is about to happen. Whatever it is... it goes live at midnight.

A research spaceship reaches an abandoned planet. Nothing is what it seems here and the situation quickly slips out of control. Can the crew manage to survive and get back home?

Survive and explore space in Astrobound! Visit strange planets, encounter cosmic calamities, and keep your crew alive as you journey through the stars in a retro-inspired whimsical space adventure.