Top similar games like Swarming Planet:

On an alien world, you must defend yourself in this unique base-building tower-defense game. Build a base by placing blocks, turrets and traps in order to survive the hoards of aliens.

A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.

A planetary tower defense where enemies attack across land, air, and space. Build layered defenses, manage resources, and survive an escalating alien invasion.

Defend your base by placing towers strategically, forming interconnected systems that depend on one another. Adapt your strategy to different environments and enemy waves, exploiting their weaknesses. In System Status: SuperCritical, resources are scarce and critical failure is always an option.

Totally Defenceless is a wave-based tower defence game. You will need to protect your energy cores from the invading alien bugs by strategically constructing a maze of towers to alter their path to your advantage.

Power the Unknown is a strategy game where you build a base on an unexplored planet and defend it from swarms of hostile bugs. Mine resources and generate enough energy to power your ever-growing base.

Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.

Free-form space defense in real time. Mine asteroids, route power from Helios and hold off pirate fleets. Lose one Conductor and a whole flank goes dark. Build without a grid, choose your weapons and take on 21 levels.

Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!

Embark on an adventure with Loot Express Delivery Service, a 2D pixel art game. As the commander, your goal is to retrieve valuable items from a distant planet. Utilize your skills and strategy to complete missions and guide your company to prosperity.

Defend the energy cores from ever increasing enemy waves by destroying their spawn gates. Build tower mazes on Hex grid. Adapt them to dynamic changes in the terrain. Face quirky bosses. Design your own levels and share them on the Steam Workshop.

Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

A sci-fi tower defense where you design enemy routes and build defenses on alien planets. Combine 16 weapons, hold off counterattacks, and advance through a four-planet campaign. Research new gear, face wall-breakers and bosses, or try Endless Mode, seeded expeditions and the map editor.

A sci-fi tower defense game where you bend the rules of combat. Deploy defense towers to exploit color-matching enemy vulnerabilities and construct game-changing outpost facilities between rounds. Play as a newly activated Child AI trying to survive both the invaders and a stressed Mother AI.

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.

Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

Grey Galactic is a real time strategy game in space where you build up your planets and ships to conquer your enemies. Develop your empire and fleet of spaceships to destroy your enemies and take over the galaxy! Do you have what it takes to become the best Fleet Captain the UFMC has ever seen?

Starfall Defenders is a classic tower defense game that features unique towers and enemies. It also has an in-game shop system that allows players to purchase better towers, upgrade existing ones, and buy special items like the Atom Bomb, Splash Bomb, and Air Supply.

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!

Obsessively mine every tile of an ancient megastructure. Cash in your haul for upgrades and parts. Build the ultimate mining rig. Don't stop until it's all gone.

Galactic Garrison is a sci-fi, turn-based tower defense game where you defend your base from relentless alien waves on Mars. Deploy soldiers, build barricades, and upgrade defenses to withstand attacks. Earn powerful reward cards to gain strategic advantages and outmaneuver your enemies.

Space Year 2899. As the new Operations Chief of Japan's Space Facility Defense Office, protect orbital colonies from debris, space lifeforms and drone fleets. Build and upgrade defenses on 10 orbits with different routes, and reshape your tactics with 130+ research projects.

Build a small mining colony in deep space and defend it from alien invaders as you extract precious minerals from asteroids in Astro Mining.

We've traveled to the past to conquer these fertile lands. Now, you must defend them from the blood cult intent on taking it for themselves. Be careful though: from where their blood is spilled, ancient magicks empower whomever is still alive.

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.

A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!

Build your defense base to repel alien invaders. Atahion is a strategy and tactical defense game in which you have to extract resources, build defense towers and use bonuses to complete the mission.

A rogue-like sci-fi Tower Defense strategy game with infinite replayability!

Rise of Mutant Swarms is a strategy survival tower-defense game where you defend the base against waves of evolving mutant enemies. Place and upgrade turrets, adapt to enemy abilities, and make critical decisions as the pressure rises with every wave.

Classic Tower Defense meets space exploration. Build turrets on mining platforms, harvest enemies to build more defenses, and mine Dark Energy to travel the stars. As a sentient AI, you must upgrade your tech, scan planets, and find a new home for humanity before Earth fades away.

A strategic and action-packed base survival game where you mine crystals, build units, and defend your base against waves of UFOs. Defeat enemies, gather resources, and unlock new planets to expand your defenses. Are you ready to conquer the galaxy?

Defend a central core in a neon geometric survival tower defense. Move and aim your operator, construct fortifications, research permanent upgrades, collect enemy ability modules, face evolving bosses, unlock endless mode, or cooperate online with up to four players.

Dicey Towers is a unique tower defense hybrid that includes a variety of unique enemies, towers, and bosses. Upgrade, combine and, manage your towers to defeat countless waves of enemies as they attempt to breach your kingdom.

Atmospheric unique minimalist tower base defense game. Highly addictive.

Mechs V Kaijus is an addictive hardcore tower defense gameplay. In Mechs V Kaijus you take on the role of Commander of a powerful Mechs squadron. Improve your Mech, strategically place towers and factories on the battlefield. Deploy support units on the battlefield, and save our civilization.

Tower defense / Roguelike / Sci-Fi / Pixel Art game with boomer games aesthetics. Mine resources and shoot those disgusting aliens right in their faces. Unlock new technology, develop new strategies and explore the planet. A modern old-school Pixel Art experience with the vibe of 90s classics.