
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.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Tower Defense, Singleplayer, Sci-fi.

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.

Madness Robots
A game where you must protect a ship from an atack of evil robots, with the help of turrets and other devices

Reclamation of Xanthros
Reclamation of Xanthros is a unique Tower-Defense Roguelike. Xeno have taken over the planet Xanthros and you must save it by defeating their Matriarch. Battle across a wide range of biomes with a changing assortment of Towers, Upgrades, and Artifacts. Features a unique turret building mechanic.
A game where you must protect a ship from an atack of evil robots, with the help of turrets and other devices
Why similar: Tower Defense 34.6%, Voxel 22.9% ★, Strategy 14.4%, Casual 9.9%, Isometric 8.9%
Reclamation of Xanthros is a unique Tower-Defense Roguelike. Xeno have taken over the planet Xanthros and you must save it by defeating their Matriarch. Battle across a wide range of biomes with a changing assortment of Towers, Upgrades, and Artifacts. Features a unique turret building mechanic.
Why similar: Voxel 36.5% ★, Tower Defense 29.8%, Aliens 11.2%, Strategy 10.2%, Sci-fi 10.1%
The Ultimate Indie Tower Defense Game. Unique Maze mechanics in 18 different endless stages that gives way to infinite strategies. Make a custom team of 9 towers. With 11 different Types and 30 elementals. 46 Quintillion different combinations!! Infinite replayability!
Why similar: Tower Defense 33.6%, Voxel 29.6% ★, RTS 16.7%, Strategy 11.9%, Sci-fi 6.9%
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
Why similar: Tower Defense 37%, RTS 19.4%, Strategy 18%, Sci-fi 9.7%, Aliens 6.8%
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!
Why similar: Tower Defense 40.8%, Strategy 15.4%, RTS 12.8%, Arcade 8.8%, Casual 6.4%
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
Why similar: Tower Defense 34.9%, Sci-fi 10.8%, Strategy 10.1%, Aliens 9.2%, Arcade 8.2%
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Why similar: Tower Defense 42%, Strategy 26.2%, Sci-fi 12.9%, RTS 8.7%, Aliens 4.8%
Embark on a quest to defeat Fenrir. Travel distant lands, flanked by your allies, and take your rightful place by Odin's side.
Why similar: Voxel 38.4% ★, Tower Defense 34%, Isometric 13.4%, Strategy 10.2%, 3D 3.7%
The ultimate mash-up of Real-time Strategy and Tower Defense!
Why similar: Tower Defense 59.2%, Strategy 13.9%, Sci-fi 9.8%, Aliens 4.9%, RTS 4.8%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 64.3%, Strategy 12.8%, Sci-fi 8.6%, Aliens 5.4%, Casual 4.8%
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.
Why similar: Tower Defense 36.3%, Strategy 12.6%, Casual 9.7%, Arcade 8.4%, Space 7.1%
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!
Why similar: Tower Defense 43.6%, Strategy 17.9%, Sci-fi 10.2%, Aliens 9.6%, Top-Down 7.1%
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.
Why similar: Tower Defense 37.2%, Strategy 21.5%, Sci-fi 13.5%, Space 9.8%, RTS 8.7%
Explore the desert. Mine rare crystals. Build your base. Survive the machine assault. Dune War features a single-player intro campaign and an endless high-score mode where every run is a fight over who control the dunes.
Why similar: Tower Defense 37.1%, Voxel 36.5% ★, Strategy 15.3%, Sci-fi 7.9%, Casual 2.8%
Sci-fi tower defense where you create your own maze, manage drones and power levels, and harvest for resources. Upgrade your turrets, buildings and ground units. Upgrade and buy new vehicles and motherships.
Why similar: Tower Defense 52.3%, Sci-fi 20.8%, Strategy 18.2%, 3D 5.7%, Indie 1.9%
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.
Why similar: Tower Defense 42.3%, Strategy 17.3%, Aliens 9.5%, Casual 9.1%, Sci-fi 6.5%
An atmospheric tower-defence strategy game about holding back an oozing toxic Tide. A distant mining colony has awakened a living flood that seeps from breaches in the ground. Dig for resources, raise defensive terrain, and burn your way to seal the breaches. Can you survive the Biletide?
Why similar: Tower Defense 32.7%, Voxel 21.2% ★, RTS 16.4%, Strategy 12.8%, Isometric 7.5%
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
Why similar: Tower Defense 34%, RTS 17%, Strategy 13.4%, Sci-fi 10.5%, Aliens 9.1%
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!
Why similar: Tower Defense 45.4%, Isometric 13%, Aliens 10.4%, Sci-fi 10.1%, Strategy 9.2%
A new charm of traditional tower defense.Hordes of unknown aliens have descended upon Earth. On dynamic scene maps, you need cleverly build defense towers to construct their path of advance, combine with controllable targeting strategies, and stop the aliens' assault.
Why similar: Tower Defense 49.6%, Sci-fi 17.9%, Strategy 14.4%, Aliens 8.3%, Top-Down 4.6%
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.
Why similar: Tower Defense 71.4%, Strategy 11.9%, Sci-fi 10.4%, Aliens 4.6%, Indie 1.1%
U.F.O. K.O. Tower Defense: Place lasers, missile launchers, sniper turrets, and use combat strategies such as airstrikes and the space ray to repel waves of alien invaders in this sci-fi tower defense game.
Why similar: Tower Defense 41.2%, RTS 21.8%, Strategy 11.5%, Aliens 8.4%, Top-Down 6.8%
Von Neumann Project is about a self replicating probe as it charts the galaxies, peacefully of course. Mine, build, expand, and explore in this sci-fi RTS. Remember to have as little impact on your surroundings as possible and protect yourself at all costs.
Why similar: Tower Defense 42.7%, RTS 22.2%, Strategy 11.1%, Sci-fi 8.2%, Top-Down 6.5%
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Why similar: Tower Defense 54.4%, RTS 28.7%, Strategy 16.4%, Indie 0.4%
Alien possessed bugs are attacking your home, stop them by any means with your arsenal of home made bug repellents and insect crushers, think fast, act fast, because the bugvasion is imminent in this classic tower defense strategy game.
Why similar: Tower Defense 43.5%, Isometric 16.7%, Strategy 12.8%, Sci-fi 8.6%, Aliens 6.7%
Anomaly 2 is a sequel to the critically acclaimed Anomaly Warzone Earth. Maintaining the core elements of the original, Anomaly 2 adds plenty of new features: unit morphing, over million tactical combinations, post-apo world and tower defense vs tower offense multiplayer mode.
Why similar: Tower Defense 47.9%, Strategy 26.8%, Sci-fi 11.1%, RTS 10.9%, Indie 2.8%
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!
Why similar: Tower Defense 61.2%, Strategy 15%, Space 12.2%, Sci-fi 9.9%, Indie 1.4%
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.
Why similar: Tower Defense 65%, Strategy 12.5%, RTS 11.7%, Sci-fi 7.6%, Top-Down 1.7%
Spaceships and Cellular Automata is a tower defense game set in space! Place different towers to defend your ship against the waves of aliens. The enemies are simulated based on Conway's Game of Life. Even just one of your bullets is enough to cause a destabilizing chain reaction to destroy them!
Why similar: Tower Defense 46.1%, Strategy 17.2%, Space 10.8%, Aliens 8.9%, Sci-fi 7.9%
Defend your ever growing platform against an ever rising amount creeps
Why similar: Tower Defense 49.7%, Strategy 20.3%, RTS 19.8%, Casual 6.8%, 3D 2.7%
Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders. Use powerful technologies of the Ancient and repel the attack of the enemy's armies!
Why similar: Tower Defense 70%, Strategy 13.2%, Isometric 8.6%, Casual 6.4%, Indie 1.7%
Harvest: Massive Encounter is an award-winning real-time strategy game with battles of epic proportions and a unique style of resource management and exploration. Build power plants, mineral harvesters and defense towers and make sure they have sufficient energy to fend off endless hordes of evil aliens.
Why similar: Tower Defense 62.9%, Strategy 23%, Sci-fi 10.3%, Indie 3.1%, Singleplayer 0.6%
An AI menace is headed to your motherboard! CAN YOU SURVIVE?! A short tower defense game, where you strategically place unique towers on a grid to stop relentless waves of enemies. Survive as long as possible, & climb leaderboards.
Why similar: Tower Defense 70.9%, Sci-fi 20.7%, Strategy 5%, Casual 2.6%, Indie 0.7%
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.
Why similar: Tower Defense 41.3%, RTS 21.6%, Sci-fi 12.5%, Strategy 12.1%, Aliens 7.2%
Orcs coming TD is a classic tower defense game where you have to keep an eye on your economy and defenses .
Why similar: Tower Defense 41.7%, RTS 18.4%, Strategy 16.6%, Isometric 8.8%, Top-Down 3.9%
Take on the roles of two ambitious strategists and defend your country against dragons and rebels in this story based tower defense game! Keep an eye out for hidden secrets and act wisely because who knows how the story might end.
Why similar: Voxel 32.8% ★, Tower Defense 30.8%, RTS 17.4%, Strategy 11%, Casual 5.1%
Dig minerals, manufacture ammunition, and build defense towers to fend off swarms of insects. A tower defense game with light production line elements.
Why similar: Tower Defense 37.6%, Strategy 19.2%, RTS 17.6%, Sci-fi 14.6%, Space 6.1%
Protolife is an unique tower-based strategy game which gives you a direct control over the builder robot in a struggle against the hungry proto-life organism.
Why similar: Tower Defense 38.4%, RTS 21.6%, Sci-fi 12.9%, Strategy 11.3%, Aliens 9.1%
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!
Why similar: Tower Defense 51.9%, Strategy 11.6%, Aliens 11.3%, Sci-fi 8.6%, Casual 5.7%
Diorama Tower Defense: Tiny Kingdom (Prologue) is a cute tower defense game with currently three different dioramas, as well as three difficulty levels. The objective is to stop the enchanted creatures from reaching the king of Tiny Kingdom, since he is allergic to those creatures.
Why similar: Tower Defense 42.3%, Voxel 27.4% ★, Isometric 16.7%, Strategy 12.9%, Singleplayer 0.7%
STARGEARS is a sci-fi RTS set on an alien world.
Why similar: Tower Defense 35.4%, RTS 22.4%, Strategy 18.8%, Aliens 8.7%, Sci-fi 6.5%
Goblin of galantis has been lurking for ten thousand years. In preparation for their revenge, the last hope of the alliance between human beings and elves has been broken, and the mainland will encounter another crisis.
Why similar: Tower Defense 38.1%, Strategy 25.8%, RTS 18%, Casual 14.3%, Indie 3.8%
Evil Defenders is a fun, frenetic defense game: build and upgrade your towers, сast spells to repel enemy forces, use special landmarks and defend the Lands of Evil from invaders! Feel free to play the game in many different ways through unique tower upgrades, a deep skill tree and 100 in-game achievements.
Why similar: Tower Defense 71.6%, Strategy 18%, Casual 8.3%, Indie 2.1%
Toon TD is a free to play Tower Defense from Gee Studios. Defend your castle. Explore new environments. Face fierce bosses. Develop new and unique strategies for every level in this next evolution of the Tower Defense genre.
Why similar: Tower Defense 42.7%, Strategy 21.7%, Casual 12.9%, Arcade 10.6%, Linear 3.8%
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?
Why similar: Tower Defense 29.3%, RTS 18%, Strategy 10%, Aliens 9.2%, Sci-fi 8.8%
Your Highness, our kingdom is at risk. We’re facing great danger! Not only villagers, but also maidens, warriors, mages, ravens, bats, eagles and dragons are trying to destroy our empire. Guard your throne and stop them now!
Why similar: Tower Defense 61.2%, Strategy 21.4%, Casual 13.9%, Indie 3.5%
Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.
Why similar: Voxel 33.6% ★, Tower Defense 31.9%, Sci-fi 10.1%, Strategy 8.9%, Space 5.9%
Fieldrunners is now available on Steam! Download it now to play the hit tower defense game critics and fans have been raving about. Descend into the world of Fieldrunners, the most anticipated and visually stunning game in tower defense history!
Why similar: Tower Defense 74%, Strategy 15.7%, Casual 8.2%, Indie 2.2%
Find the best combinations of projectiles and components to create the ultimate weapon. Mutate and upgrade your components to create stronger weapons. Fight wave after wave of monsters to reach the top.
Why similar: Tower Defense 44.7%, Strategy 22.8%, Sci-fi 16.1%, Casual 7.3%, Top-Down 5.4%
The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.
Why similar: Tower Defense 76.5%, Strategy 15.3%, Sci-fi 6.5%, Indie 1.7%
A tower defense editor that allows players to design their own games
Why similar: Tower Defense 30.4%, Voxel 29.3% ★, RTS 18.7%, Strategy 11.6%, Casual 6.8%
Defend your planet from relentless stream of incoming asteroids in this fast-paced 2D tower defence game. Strategically place defensive buildings and upgrade your arsenal to protect your world from destruction!
Why similar: Tower Defense 46.2%, Strategy 18.6%, Sci-fi 11.5%, Casual 9.4%, Space 6.9%
Defend your starship in this endless sci-fi tower defense game! Form your ultimate squad of 2D heroes, permanently upgrade your spaceship's hull and defenses, and unleash powerful ultimate abilities to survive relentless waves of cosmic alien invaders in the vast void.
Why similar: Tower Defense 31.3%, RTS 19.8%, Strategy 17.5%, Isometric 9%, Casual 8.9%
Protect the streets from the living trash.
Why similar: Tower Defense 50.7%, Strategy 19.9%, Casual 8.3%, Top-Down 7.5%, PvE 7%
Rustic Defense is a fantasy tower defense game with roguelike elements, generated enviroment with option explore your own way. Research skills and heroes, choose path, build towers and upgrade them.
Why similar: Tower Defense 37.4%, Voxel 30.3% ★, Strategy 18.6%, Isometric 13.3%, Singleplayer 0.4%
Defend your main hub against the waves of incoming enemies which wanna see you DEAD. Mine resources, smelt them and then build your defenses and survive until the end.
Why similar: Tower Defense 37%, Strategy 19.9%, Casual 12.1%, Aliens 10.8%, Sci-fi 9.9%
Want a tactical and strategic tower defense challenge that's packed with options and upgrades? Take command of the dropship Sentinel and do battle across a vibrant sci-fi world.
Why similar: Tower Defense 42.6%, Strategy 29.8%, Sci-fi 23.1%, Indie 4.4%
Frontier Control: Invasion is a Real-Time Strategy survival game in which you play the commander of a human space colony under the attack of outer space robots. Build your base, train your colony, and fight herds of enemies and bosses.
Why similar: Voxel 25.7% ★, Tower Defense 25.1%, RTS 16.8%, Sci-fi 9%, Aliens 7.4%
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!
Why similar: Tower Defense 40.8%, Isometric 16.8%, Sci-fi 12.9%, Strategy 11.3%, PvE 6.7%