Top similar games like Totally Defenceless:

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.

A maze-building tower defense where tower placement is everything. Force enemies the long way around, build choke points, push through lava, and adapt as levels change beneath you. No spells, no card modifiers. Just planning, placement, and a cat stuck in a jar.

Tau Cubis is a mazing tower defense game set in colorful sci-fi landscapes. Use your strategic skills to overcome numerous challenges and advance through the leaderboards.

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

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

A living ant tower defense, upgrade abilities to increase competitiveness. Combine different ant species to form an aerial defense and kamikaze attacks. Deploy ants to collect honey. Breed ants to expand your territory and compete against red fire ants to save the natural environment of the island.

An intergalactic mission gone horribly wrong! The alien brothers tried to land on Earth, but got lost and are now in the middle of a human maelstrom! Control the UvU drone and bring order to the chaos in this unique adventure.

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.

Destroy. Salvage. Repair. Upgrade. PROFIT! A real-time tactical experience where you command your own mercenary outfit of mechs and mercs and adventure through randomly generated missions filled with rewards, glory, and bitter defeat.

Trapped in Area 51 on planet Earth, you must solve calculated puzzles to escape this strange planet. Puzzles consist of using enemies' mechanics to your advantage, moving objects to block enemies, and using items that alter parts of the rooms. A spiritual successor to Adventures of Lolo.

Build towers, grow crops, and stop a mad scientist's undead army in this chaotic, comedy-filled tower defense game.

TEP the destroyer is a single player tower defense game where you will face alien monsters and ships in ground and space battles! Your strategy will decide the fate of your people in a sci-fi environment of varying difficulties!

Negative Energy is a tower defense game with basic RTS mechanics, where your goal is to defend the construction of a Dyson sphere, while fighting against waves of hundreds of enemies ships.

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.

2D Tower Defense game set in a colorful world of Crayons. Over 20 different Maps with plenty of fun Weapons at your ready to defend the Crayon Empire. Can you survive the onslaught?

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.

Stranded on a mining planet, your escape hinges on quarrying gold. Solve challenging puzzles by using unique card abilities to uncover riches and escape in this strategic, card-based puzzle game!

Box Stocks is a Sokoban game about a robot in space solving puzzles with boxes with unique and peculiar interactions. Sort your way through the galaxy while uncovering the secrets of the mysterious yet inept company that left you and the boxes behind.

Cyber Tower 2048 is an action tower defense game where players fight insectoids by building defenses and developing tactics.

Save Our Solar System brings a fresh look on the tower defense genre. Shape the world around you with a lovable playable character. Harvest metal to upgrade towers. Collect rocket parts to advance to further planets. Fend off endless waves of asteroids.

A unique top-down puzzle shooter where you control a robot with an unusual weapon. Throw your laser gun across gaps, hit switches, and fire the gun to shoot beams that ricochet off walls, destroy enemies, and hit targets. Make every shot count as you solve puzzles in 60+ stages!

Myrne 6313 is a mix between the extraction shooter genre and corporate life. Survive an hostile office space where each step can be your last. Help HR find their stapler, get chased by security dogs, clear your inbox, fight cultists in the parking lot, learn magic… And more!

Celestial Defense is a sci-fi space tower defense strategy game where tactical base building and resource management determine your survival. Build asteroid belts, evolve planets, and withstand relentless wave survival combat against the Void.

Classic tower defense depth with an extra sound waves sync tech garnish

Faith & Shield: 4044 Tower Defense game, where you protect the human settlement from the incoming invaders, robots and other creatures, never seen before on our planet.

A tower defense roguelike about robots and ooze. Play solo or local multiplayer, protect the Glorp, and defeat the creeps. 

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.

Defend your base from all directions in this no-path tower defense. Build, upgrade, and adapt to unpredictable enemy waves, survive unique boss fights and unleash the Quantum Decimator when things get overwhelming.

Try to survive in infinite asteroid cloud as long as possible in reworked tower defence style. FInd your own playstyle and beat your own records or chillout with original ambient soundtracks. Build, explore, think - everything to create your own colony in this cold space.

Empires of a Tiny Universe is a relaxed single-player RTS where you build and expand your empire across space. Manage planetary infrastructure, develop new technologies for your fleet, and conquer the galaxy - all from a clear, minimalist perspective.

Sci-fi tower defense meets ARPG-like hero combat. Build towers then fight alongside them with your hero as you battle through a campaign to uncover the fate of a colonization effort on a distant planet.

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!

Take the role of a Defence Commander and protect UPF assets remotely through the use of your Adaptable Nano Tablet in this immersive, PC focused Tower Defence Game. It's designed to be a tough but rewarding experience with character progression and the ability to configure towers to your own liking.

HypnoTiles is a puzzle game of the falling blocks variety. Its psychedelic graphics, hypnotic soundtrack and absorbing gameplay put the player in an almost trance-like state. Features 3 game modes and online highscores.

Abduct the Milky Way’s Oracle Jukebox located at the top floor of a penthouse party as the shapeshifting, absorbent Goob, fully equipped with a ravenous appetite for melodies, mankind, and mosh pits.

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