Top similar games like Istrolid:
Istrolid FREE
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
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Dyson Sphere Program$19.99
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.

Axan Ships - Low PolyFREE
Sci-fi RTS and Top-Down

Space Haven$22.99
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.

Empyrion - Galactic Survival$19.99
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!

Space Station Continuum$14.99
Space Station Continuum is a building & management sim inspired by the past, present, and future of humans in space.

Starmancer$14.99
From a small 2-man team comes a unique space station management sim. Take on the role of an A.I commanding a lost space ark. Try not to let your crew run amok and wreck the place.

Drift: Space Survival$19.99
You were deep in uncharted space on a research mission. Disaster struck. Together with your friends, explore a mysterious asteroid field and mine whatever resources possible to build what you need to survive.

Techtonica$29.99
Techtonica is a first-person factory automation game with a gripping mystery about mining your way out from the depths of an alien planet. Explore bioluminescent caves, mold destructible terrain, construct a massive subterranean factory. Dig your way toward answers & discover the secrets of Calyx.

Starport Delta$24.99
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...

FOUNDRY$29.99
Build a factory optimized to perfection or an artistic masterpiece in an infinite voxel world. Mine and harvest resources, automate your ever-growing production lines and manage complex systems while researching your way to mechanical mastery in FOUNDRY.

Hydroneer$14.99
Hydroneer is a mining and base building sandbox. Dig for gold and other resources to turn a profit and enhance your mining operation. Build a base of operations, forge weapons, go fishing, and dig deep!

Castle Story$9.99
Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.

Make Your Kingdom$14.99
Make Your Kingdom is a city-building game unique to its genre. Play as a founder of the settlement — help build your kingdom, carry the resources, talk to other settlers, motivate them and fight off hordes of orcs with your own sword!

Pixel StarshipsFREE
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

MachinistFREE
A game production platform based on 3D physics engine and building block logic programming. Players who like creating games and assembling machinery can design a rich variety of custom games without having to learn and memorize complex commands and gain profit through the in-app purchase system.

Planetary Annihilation: TITANS$29.99
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!

Tactical Craft OnlineFREE
Tactical Craft Online - MMO sandbox with tactical role-playing elements with a large open fully destructible world, with clans, trade between players, construction limited to the players imagination, various crafting, mining of multiple ores, farming, fishing, a massive tech tree etc.

Gratuitous Space Battles$14.99
Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.

Mechanic Miner$7.99
Put your mechanical skills to the test in a physics-based sandbox where ingenuity and creativity are the ultimate key to survival. Construct fantastical machines, gather resources, acquire new technologies to battle dangerous enemies and use your imagination to shape your world.

Crying Suns$24.99
Crying Suns is a tactical rogue-lite that puts you in the role of a space fleet commander as you explore a mysteriously fallen empire. In this story rich experience inspired by Dune and Foundation, each successful run will uncover the truth about the Empire... and yourself as well.

Edge Of Galaxy$4.99
Edge of Galaxy is a real-time tactical space sim with RPG-lite elements. As the commander of a mercenary fleet, you must hire and manage your ships, upgrade their capabilities, and rise through the ranks to become a legend among mercs.

Space Pirates and Zombies$9.99
Explore a randomly generated Galaxy populated with factions, enemies, missions, and items providing you with a unique experience each time you play.

Lazy Galaxy 2$7.99
Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!

Space Menace$6.99
Space Menace is a sci-fi space RTS and battle game. You play as a space captain, seeking fortune and glory as you see fit. Leave your mark on the world and determine the fate of the galaxy with your decisions.

Extinction Eclipse$9.99
You are in command of the human fleet, searching for asteroids to mine, extract resources and build bases and more ships to defeat aliens invaders. This simple and short action RTS has a full and exciting campaign, and a skirmish mode that allows you to play a different mission on every match.

The Fall of Aether Station$12.99
Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense/real time strategy hybrid. Take on an enemy that learns from your moves and adjusts its own path. Do you have what it takes to persevere?

Reassembly$14.99
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.

Distant Star: Revenant Fleet$9.99
BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX

Sunshine Heavy Industries$14.99
Welcome to Sunshine Heavy Industries! As the new spaceship engineer, solve increasingly tricky design puzzles with your own personal style. Manage customer demands, juggle budget and ship performance, and survive the questionable decision making skills of your business partner.

Battlevoid: Harbinger$9.99
Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.

Executive Assault 2$24.99
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.

FortressCraft Evolved!$12.99
FortressCraft Evolved is a unique blend of Voxel Landscapes, Tower Defense, Crafting, Logistics, Exploration, Combat and Assembly lines. Players begin by crash-landing on a strange alien world, left with only a small handful of starting machines.

Planetbase$14.99
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.

LandTravellerFREE
See a world from a new perspective in this animal-ear themed constructive action RPG!

Ascend Factory$6.99
Welcome to Ascend Factory, a factory simulation game that challenges your ingenuity and resource management skills. Immerse yourself in a world of automation and strategic planning as you progress through levels of increasing complexity!

Maia$24.99
Maia is a colony building game set in the not-so-distant future. Your colonists make planetfall on a hostile world and you must ensure their survival and their safety, constructing their off-world habitat from almost nothing and sheltering them from a dangerous, often deadly environment.

ASTRONEER$29.99
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.

Life is Feudal: Forest Village$24.99
LiF:Forest Village is a city builder with survival aspects in a realistic harsh medieval world. Shape, build and expand your settlement, grow various food to prevent your villagers from avitaminosis and starvation. Possess them for additional micromanagement or simply to wander around.

Satisfactory$39.99
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

Planet SFREE
Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.

Axon TD: Uprising - Tower Defense$19.99
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.

星旅:前奏 Wandering Planet: Prelude$3.99
Star Trek: Prelude is a space-based game that builds defense towers on earth to defend against alien invaders called Black Ember.

Spacecraft Tactics$8.99
Spacecraft Tactics is a 2D turn-based tactical space game. Save the last rebel outpost in the campaign. Develop a strategy, execute it in tactical battles and micromanage your ship. Play various game modes single or multiplayer. Create your own ships, scenes or mods and share them.

SimAirport$24.99
Build & Manage Your Airport. An International Hub or a Regional Masterpiece -- it's up to you. Buy more land to scale out, or escalators to scale up with MULTIPLE FLOORS. You're in full control in this modern business management tycoon!

PixelJunk™ Nom Nom Galaxy$9.99
Welcome to SoupCo, Astroworker! In Nom Nom Galaxy, construct and automate gigantic soup factories on unexplored planets throughout the universe, harvest flora and fauna to turn them into artisanal soups, and rocket your product into the gullets of the galaxy!

Run Build Pew!$2.99
You’re being Bounty-Hunted! Run, Build your ship piece-by-piece and make it work with the parts you find, Destroy outposts and waves of fleets, and Pick your battles carefully to overcome your hunters in this Fast-Paced Top-Down Action Roguelite Shooter.

Cortex Command$19.99
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!

The RushFREE
The Rush is a horizontally scrolling shoot 'em up with graphics inspired by classic space shooters of the MSX. Buckle up and see if you have what it takes to master the highly adaptive Chameleon Quartz space fighter and single-handedly obliterate the alien invaders!

TUNNEL DIVERSFREE
Dive, destroy and escape. TUNNEL DIVERS is a F2P high octane twin stick shooter, where you pilot a close quarters based spaceship that excels in claustrophobic areas. Play online with or against other pilots, create your own levels in the level editor, and wage war against the rogue AI, Watch Dog.

Endless SkyFREE
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.

AQUA KITTY UDX$6.99
AQUA KITTY UDX blasts onto PC in this enhanced Ultra Deluxe Edition including the epic Dreadnought game mode!