Top similar games like Save the Planet:

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.

Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense game. Fight increasingly difficult hordes of aliens as you adapt to challenging new battlefields designed to test the most strategic mind. Do you have what it takes to persevere?

Rise to the challenge and play Captain Miaou, lost in space. Survive by grabbing energy food to propel yourself and gain enough speed momentum. Fight gravity and bump away through 5 worlds of various physical obstacles. Time your jumps accordingly, upgrade your catsuit and scratch at will !

Terminal squad: swarmites is a game with indirect control where you must erect a chain of buildings, which generate resources for construction or the combat units for destruction of an enemy.

Cosmic Gunslinger: Alien Outlaws is a pulse-pounding single-player video game where you, as the gunslinger cowboy Cosmo, and your trusty canine companion, must survive relentless waves of Aliens. Upgrade your weapons, collect crucial items. Can you outdraw and outlast the alien threat?

Engage in intense battles against diverse enemies, leveling up and customizing your character with unique body parts before each adventure. Discover attachments that radically change your playstyle, ensuring every playthrough is exciting and unpredictable.

Blast off through space, dodge asteroids, and beat bosses!

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.

You are the lucky one (or not) who managed to survive the most powerful solar flare in history and then plunge headlong into the permafrost. Can you adapt to the new conditions on Earth without losing your sanity and retaining your humanity?

The Final Frontier is a game about star battles and meaning of freedom. It’s a fascinating journey through the endless, procedurally generated space in a universe where you struggle for freedom taking a role of the rebel leader.

Scrap Bastion is a strategy tower defense game where you manage your city, equipping it to survive the waves of mutant creatures, testing your planning and decision making capacities at every turn. Watch out, as time is crucial to win!

Somewhere among the stars awaits a remedy for your Mother. Search a vast mysterious Planet on the verge of collapse while fighting to survive. What perils await you? What will become of the Planet? What legacy will you carve into the skies? What fate awaits your Mother.

HatLand is a game where you need to see GAME OVER many times to complete a level. But each time, passing further along the inner corridors of the Empire's spaceships, you will become stronger ...

Crowds of aliens attack from all sides, collect the necessary skills and survive.

Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.

Become a Captain! Fly your ship and command your crew as you compete to become Champion in a winner-takes-all reality show. Build relationships and plot betrayals to avoid getting voted off the season and become the last captain standing. Optional VR support.

Red Horizon is an addictive space shmup game. Heavily influenced by the classics of the past, Red Horizon takes a modern spin on the genre combining it with some subtle Rogue-like elements to provide players with a unique experience every time they play.

Space fight arena is a retro arcade based arena shooter game that was modeled after legendary arcade games. This game retains the fun, addicting aspects of those arcade games while also adding on new, awesome features such as challenges, skins, and a world wide leaderboard.

whimRE is an atmospheric open-world adventure. Complete missions to escape through a portal while surviving against hostile enemies with limited resources using various weapons or stealth tactics. Choose from 3 sets, each with unique advantages. Strategize, fight, and find your way off the island!

Alpha One is a top-down action, 4X-lite strategy game. Each action level is a turn in a strategic conflict as you race to collect resources, acquire upgrades, expand territory and build defenses. All to find a way home!

Amazing Pea TD is a PC tower defense game. You’ll lead the resistance of plants, which are being captured by aliens from exhausted starving planet. Place towers and build barricades, freeze, teleport and blow them up - but don't let them enslave You!

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.

A fast-paced, first-person experience set in a future taken over by deadly hi-tech drones. As humanity's only hope, it's your mission to identify this threat's origin and neutralize it. But are you ready to face an army whose single target is yourself?

Trigon: Space Story sees you take command of your very own spaceship. Carry out tactical battles, defend your vessel against space pirates, and escape from enemy territory. On your voyages, you’ll face a slew of tricky decisions in your quest to uncover the mystery of the galaxy.

Super-tight controls and satisfying mechanics will guide you from the seemingly-peaceful early levels all the way to complete insanity in this survival space adventure. Beginner pilots will grow, skilled pilots will be challenged, but only the best will reach the end.

Deep Sixed is a roguelike space sim that will force you to use strategy, ingenuity and duct tape to keep your ship (and your skull) in one piece as you risk exploring a mysterious nebula protected by dangerous alien creatures.

Warpflux is a top-down action based resource management game. As the commander of Earth's colony ship and a fleet of autonomous drones, collect supplies and defend against hostile forces during a thousand year voyage to save humanity.

Manage a space station, flying through a procedually generated universe, fight, build and survive in the coldness of space.

One by one, the stars begin to die without reason. Thousands of inhabited worlds are turned to dust. You and your crew must find “the Transition”, your last desperate hope to find new worlds. Assemble your fleet, customize your spaceships and fight for the salvation of all intelligent life!