Top similar games like Planetoid:

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

Habitat is a physics-based space game where you build, fly, and fight with whatever you can find out in space. Upgrade and arm your creations with weapons and structures you find in orbit, fly and explore using rocket physics.Battle deadly enemies in Campaign Mode to save humanity or explore Sandbox Mode for true creative control.

Dive into Astronaut Assault, a third-person Sci-Fi tower defense game, and battle against relentless enemy waves in diverse arena settings. Arm yourself with an array of turrets, traps, and gadgets to halt, hinder, and outmaneuver your foes.

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

Eden Star is a fast paced Sci-Fi survival game that blends unique physics based combat, destructible environments and free-form construction with the exploration of a hostile alien world.

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

The first ever auto-battler game, from way back in 2009Who 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.

Elite Engineering is the ultimate sandbox engineering game, characters, environments and creations all created by you and the community.

Fight a relentless fluid enemy in this mix of tower defense and real-time strategy. Build your base, grow your forces, and unleash massive firepower to reclaim vast flooded worlds. Face Creeper types with different physics, deploy experimental technology, and create your own maps and units.

Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.

Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build castles; construct mechanical devices and underground mining. There is an entire planet to explore!

Snap, rotate and launch your own warship in minutes, then pilot it into bullet-hell boss fights to hunt the galaxy's supervillains. Master intuitive engineering, evolve from drone to dreadnought, and use the fully gridless designer to build anything you can imagine!

Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.

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.

Pilot your ship through a perilous black hole system in this Space Action RPG. Engage in advanced ship combat, haul rare elements, and upgrade your vessel to survive. Stunning visuals, a deep narrative, and a rewarding progression system await as you uncover the abyss's dark secrets.

Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!

Make yourself a keeper of an ancient tomb. Protect your treasure from pesky heroes in any way you can — set traps, create cliffs, make surfaces slippery. Or let your friends become adventurers and show them the full power of the Reverse Dungeon!

The Last Leviathan is a physics-based, ship building and destruction sandbox. On your voyage to uncover where The Last Leviathan lies you will discover a world full of rival ships, mythical monsters, wrecked flotsam, physics-puzzles and hidden treasures.

Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.

Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 6, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.

Millions of players worldwide have flown, built, and fought their way through Captain Forever. CF Trilogy brings Captains Forever, Successor, and Impostor to Steam with a beautiful new renderer, new modules, and a reimagined world written by acclaimed novelist Cassandra Khaw.

Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!

Strata is a scientifically inspired astro-planetary sandbox where you influence the formation and evolution of entire worlds — your worlds. Discover, gather, and build on the surfaces of diverse planets, explore them in depth, and manage your systems beyond the orbital levels.

Become a ragdoll and create your own environments in Sandbox Mode, explore worlds created by others, or just flop around your destructible sets! Fun with Ragdolls®: The Game lets you enjoy everything you love about ragdolls!

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.

This version is only the prologue of the full game. The game supports 1-4 players. Build you homelands in Sanctree, using resources to craft weapons and equipment to fend off underground insects. Dig deeper to explore new worlds, destroy insect nests, and build new defenses to face greater threats.

Rally your friends and defend your village in a chaotic blend of action and strategy. Stock up on resources, build wacky defenses and lay deadly traps by day. Come night, grab your weapons, unleash powerful spells and fight back against invading armies. Team up, embrace the chaos and defy the gods!

Forge invincible defenses with lethal traps and devious machines, and crush relentless waves of adventurers in the ultimate tower defense showdown!

A real-time strategy, tower defense, and base-building game where physics based 2D blocks influence the course of grand battles and the construction of strategic fortresses.

Defend your garden from a bug invasion using everyday objects turned into turrets: magnifying glasses, garden hoses, UV lamps, and more. Upgrade your defenses, adapt to changing weather, and outsmart increasingly cunning enemies in this strategic tower defense with a backyard twist.

Space debris is out of control! Craft a station to take out the trash in this construction roguelite mashup.

While a formidable evil emerges, an unexpected alliance is taking shape! It will take the finest warriors of Linirea and the relentless Dark Army to stop it. Beware! Though they may journey side by side the ever-changing winds of fate could swiftly alter their course.

Bumper Blitz TD redefines tower defense with gravity-powered physics and dynamic gameplay. Build, upgrade, and bounce enemies away in this thrilling fusion of strategy and action!

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.

Fishing Through Clouds: Sky Survival is a strategic survival game combining fishing‑survival, sky‑island building, Roguelike and innovative tower defense. Fish for resources by day, repel interdimensional monster hordes with allies at night, and build your own sky stronghold within the 28‑day cycle.