Sanctum: Cavern

An inventive tower defense/ first person shooter hybrid that pits elite soldier Skye against various forms of alien life on a small set of unique maps. Skye must build and upgrade defensive structures while jumping into the fray to help her creations take down the hostile invaders.

Return to the Arc Islands for The Last Stand! Lume activity has increased exponentially and you and your fellow Core Guardians find yourselves more outnumbered than ever. Even out the odds by Utilizing the new Orbital Strike Relay tower and smash down a lazer from the sky into their FACE! Defend the Core on four new maps, one of them being a remake of the classic old Arc map. To help you face the new enemies in The Last Stand, the Bright Foundation has placed the most powerful weapon you've seen so far on three of the four new maps - The Rolfinator Defensive Turret, a turret that you can actually jump inside yourself and control to obliterate the enemies from afar. Of course, you'll have other new weapons as well, such as the high-tech Smatterband, an industrial weapon that fires sticky bombs that erupt into 10 smaller explosions each, and you'll get to unlock 8 new perks!

Pursue the Titan through the outskirts of Elysion One! This expansion adds even more replayability through four completely new maps! Use two new towers, including the Mind-Control Spire that takes control of enemies and lets them fight for you! Unlock new devastating weapons, such as the Drone Launcher, that launches target-seeking drones that home in on enemies and shoot lazors on them. They'll be all like "NOO NOT THE BEEES!" Of course, there are going to be new enemies as well, such as the Heavy Pup that's far more aggressive than it's older equivalent, and the flying Bliskeblaske, which you'll just have to see for yourself. Finally, you'll be getting seven new unlockable perks as well - for example, the Reinforcements perk has a chance to spawn Explorers with shields every time you kill an enemy!

Explore the dark depths of the Slums of Brightholme! This expansion adds four new maps that will once again brutally challenge your maze building abilities! Play with the new unlockable towers such as the crazy random Makeshift tower, or saw your foes up into pieces with the very first melee weapon in Sanctum 2 – the Circle Saw! Of course you’ll see new enemies as well, such as the Infected Explorer, a hybrid between a human and a Walker. And finally, there will be seven new unlockable perks, including the Thor Module, which causes towers to emit shockwaves whenever they kill an enemy.

The spiritual successor to the epic strategy-shooter Void Bastards, Wild Bastards is a hybrid FPS/strategy game with heart-pounding tactical combat, detailed management systems, and a roguelike campaign. Saddle up and lead the most notorious outlaws in the galaxy.

Thousands of alien machines are descending on Earth's first interstellar colony in this massive-scale new tower defense game from the publisher of Ashes of the Singularity and Sins of a Solar Empire: Rebellion.

Bastion of ancient civilization, a keeper of galaxy wisdom is invaded by alien armies. Use powerful ancient technologies and defeat the attack of enemy armies!

An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...

8-player co-op strategy/RPG set on Mars during The Red Solstice In The Red Solstice you control one of the eight space marines that are trying to find out what happened to human colonies on Mars during the huge storm called The Red Solstice. The mix of a dark and gritty Science Fiction setting and addictive adrenaline filled gameplay - based on advanced tactics and quick decisions at the same time - makes for a great atmosphere and gameplay experience.

Keep hope alive on your adventure to the mythical Forever Star! Gather survivors, repair and build out your starship, brave black holes, and fend off attacks, all while managing the daily soap opera of your colorful crew.

Starlight: Defence Command is a Tower Defence game designed for the PC that is tough and more in-depth than those gone before. With the ability to configure towers in billions of possible combinations, unlockable perks and fine tuning through target priorities, players are given powerful tools to complete the galaxy-spanning, story-driven campaign.

The universe is full of Starlings, tiny orange aliens that want to take over the galaxy. Create your own space colony, fight epic battles and discover new planets. Train your soldiers, develop your technology and create unimaginable gadgets. Enjoy with your friends in this huge social game. Original title was delisted and shut down in 2016. This title's new owner, Phoenix Network, recreated and relaunched the title in 2022.

World of Towers combines puzzles with tower defense. Design your base in order to collect all of the puzzle pieces and destroy your enemies. Create and share your own worlds on the Steam Workshop using the World of Towers World Builder

Enemies have invaded your lands. Thousands of tanks and airplanes are ready to battle with you. Wars can not be avoided and you need to clash the alien face to face. Your enemies are not any monkeys - these are professional warriors! Only one side of the conflict will survive. To win you need to become king of TD. Military equipment of your enemy is not a toy. Every battle with your enemy turns into battle royale. You and your enemy have modern equipment: tanks, ships, airplanes, artillery, mines and bombs. You and your enemy have modern equipment: tanks, ships, airplanes, artillery, mines and bombs. Protect & Defense: Tower Zone is a tower defense game that will appeal to both professionals and new players. You expect an interesting gameplay. All weapons and abilities are perfectly balanced. To win, you need to build new towers or update them. You also have the support of artillery, aviation and other bonuses. All towers have different abilities - some can damage few targets at the same time, while others shoot slowly but powerfully. You will have to defend against many aliens using a variety of tactics. In the game you can customize fortifications as you wish. A flexible system for adjusting the level of difficulty will provide an exciting gameplay for any player.