Top similar games like Unearthing Invasions:

A tower defense strategy game with a voxel-styled design, set against the backdrop of the red planet. Ancient Martian creatures emerge from Korolev Crater ice, threatening a research base. Protect it while revealing the planet's hidden secrets through strategic gameplay.

Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro managing fire groups you will overcome the hardest level objectives.

A retro space game with 3D graphics and modern controls. Rotate your ship and shoot at any angle, instead of just sliding back and forth. Enjoy 3D graphics with lighting effects and realistic explosions.

A fast paced garden defense game. Collect what you can before the pests take over!

Asteroids are headed directly towards Earth. Destroy asteroids before they can slam into Earth. Earn medallions to purchase ship upgrades to help in the fight to save Earth.

Star Jet Alpha is a top-down space shooter inspired by classic arcade games. Progress through each stage by blowing up enemy space stations while avoiding or destroying enemy missiles, space mines and asteroids. Unlock Star Jet capabilities by completing stages.

Retro-inspired arcade-style shooter. Save humanity from incoming waves of flaming hot meteors, alien ships hell-bent on destroying humanity, and the strangeness of space by shooting, blasting and nuking incoming waves of meteors and enemies.

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Gather a squad and fight for survival in We're All Going To Die. Work together with a squad using abilities, equipment and exploring different levels to make the most of your fight against your demise, after all, you're all going to die at some point.

Manny TD is a hybrid tower defense and third-person shooter with random in game elements. Join and get your personal high score!

Cosmic Tank is a modern take on the classic game Asteroids. Mine your way to riches! Fight off hostile threats! Upgrade your ship and rent a few helpful drones! Survive epic boss fights!

2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.

Solitarius is a 2D top-down wave shooter set in a sci-fi space environment. It is a free minigame that contains six different levels, eight different enemies and nine different weapons. Instead of surviving as long as possible you have to make it through each level.

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.

Assume the role of a Space Fleet Captain and take part in numerous space battles as you travel across the galaxy and fight to save humanity. This cinematic narrative driven action-focused space shooter, will take you on a journey into the near future, and put the destiny of mankind in your hands.

Build your towers according to the enmey you are facing in the wave. Upgrade your turrets to increase range, damage or rewards. Each enemy wave will be random and increases in speed and damage resistance. How far can you go!

A retro-inspired 2D space shoot-em-up. Mine asteroids! Shoot alien saucers! Get rich or die flying!

Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.

Slash and shoot everyone in your way in this hack and slash game. Kill a lot of enemies and find a way to the exit to complete missions.

Customize your Gun Bots to fight through 7 unique worlds with different weather conditions that become more challenging as you progress.

Another Dungeon is a Tower Defense in which you must save your fortress from the Ancient Evil!

Escape From The Red Planet simplifies resource management, tower defence, and first-person mechanics into a singular arcade experience. On the latest mission to Mars, the Orion III crash-landed. With Martian attacks looming, Houston most definitely has a problem!

The War Enders: First Strike is a bullet hell shooting game. While having 3D graphics, the game keeps a classic taste of this hardcore genre. Select and customize your fighter with interest. Dodge the bullet and strike back the unknown with the determination to save the Earth!

Sci-fi top-down twin-stick shooter with 9 weapons, 3 alts and secret hidden collectibles!

Deploy your turrets and defend against an ever-growing mechanical horde! Upgrade your turrets separately in unique ways, use unique character abilities, and create powerful synergies.

You have a very important mission. Be a hero who saved humanity from extinction. Fight intense battles, use all your skills and destroy all the threats that are coming to our planet. Remember, we don't know exactly what we are dealing with, be careful. You are our hope.

Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

A wave-based action game, where you fight to survive for as long as you can.

When alien beings decide to invade and conquer Earth, they don't expect such a powerful enemy: A very angry farmer, join him in the battle against dangerous and lethal aliens and win back the farm that is rightfully yours.

Space Nature Attack TD is a tower defense where you can level up and customize tower stats and elements to your liking! Fend off various types of alien creatures across many different sci-fi planet themed maps, biomes, and difficulties!

Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *

Dive into an epic space odyssey blending arcade action with puzzles. Command your ship, demolish asteroids with Tetris-like bricks, gather resources, upgrade your vessel. Play it casual or become an underdog who finds legendary ship and strikes back hard to hostile aliens enslaving your people.