Top similar games like Space Cycle:

Craft Your Ultimate Circular Fortress! Dive into SHOOPER NOVA, where you choose props and components to build a unique fortress. Unlock combos to shape your strategy and battle style. Become an unstoppable barrage machine and obliterate waves of enemies from all directions!

Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.

Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges.

The hungry Gooper swarm threatens intergalactic peace. Stop them! Build towers around planets and take control over their orbits. Spin them with all you’ve attached! Collect new towers, powers and upgrades to beat the onslaught of goopers and save the galaxy in this colorful Tower Defense Roguelite!

"Swarm Survivor: Endless Siege" is a light Roguelike bullet hell shooting game. You will become the last survivor of the Swarm, fighting hard to survive in the endless siege of the alien fleet, building a powerful combat force, and facing wave after wave of challenges.

A minimalist sci-fi tower defense. Buy soldiers and upgrade them, defeat waves of enemies, hold your lines.

A light tower defense game with unique planet exploration. Defend against aliens, collect resources, and build a new home. Exquisite graphics and challenges await!

The Echoes of Mars is a voxel-style tower defence game. Defend your research base on Mars from ancient creatures by strategically placing towers and using advanced tech.

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.

Exo TD is a true 3D space Tower Defense. Invaders have scouted your planet as their next target, you must protect it by building destructive turrets, orbital defenses, shields, drones and more to defend against the incoming invasion force.

A classic tower defense game set in space! Build and upgrade towers, defend your portal from waves of alien invaders, and outsmart evolving threats across handcrafted and procedural maps.

Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

Transistor Defense is a strategic tower defense game where players must fend off the onslaught of a rogue sentient AI determined to overtake the network.

A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.

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.

'Kingdom defender' is a strategy game that blends card placement, tower defense, and roguelike elements. Players assume the role of an exiled prince, fighting to reclaim their homeland from the demonic lord......

"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...

Demo for Core Defense, a roguelike tower defense game with a dash of deckbuilding. Choose a reward, improve your build, survive the next wave, repeat. Highly replayable, difficult, and addictive. You'll want just one more wave, just one more run!

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.

Neon Grid Defenders is a sci-fi roguelite tower defense game featuring a free and unique upgrade system, decision based path generation and a strong but static difficulty curve. Build your path, place your towers, hook them up with upgrades and melt your enemies!

Project Myriad 2 is a tower defense strategy game. Build towers on a grid of hexagons floating in space. 35 levels with unique tiles and mechanics each providing a unique challenge. 3 difficulty levels including extreme mode which has never ending waves of enemies. Strive for your new high score!

Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction.

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!

Gear up and get going! Defend your outposts from waves of alien enemies with your mech. Build and upgrade your base, protecting the extraction of the mysterious planetary system’s rich resources!

Strategy, timing and fortune: Novel and immersive tower defense game experience!

Sci-fi Tower Defense real-time strategy with pleasant adaptive music. Play as a commander of a space station which got stuck in a time anomaly.

Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!

ULTRAMASSIVE is a rogue-like deckbuilding game in a sci-fi setting. Embark on a journey towards the center of the galaxy, craft unique decks, fight hostile aliens, upgrade your space ship and face the unknown.

Defend your AI capital against endless alien invasions in this space shmup-inspired tower defense with roguelite randomness. Dissect bodies and ships to unlock weirdly powerful tech. Upgrade your base with turrets, turning your screen into a symphony of perfect destruction!

Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.

Project Eternal is a deck-building tower defense game. Use the cards you receive as rewards to keep creating unique combinations of turrets and defeat the oncoming enemies.

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

Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.

The fusion of deck-building roguelike and tower defense returns, bigger than ever! Build your deck with powerful new cards, unlock unique trinkets, and deploy enhanced towers to overcome relentless waves of enemies and new strategic challenges.