Defense Task Force - Sci Fi Tower Defense
Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types…
54% of 35 Steam reviews are positive$2.99
Games like Loop Defense: Acquisition Protocol
Miss the replayable and tense pull of Loop Defense: Acquisition Protocol? These games keep things close enough to feel familiar.
Radiant Defense
MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin!
Replayable, Tense
82% of 141 Steam reviews are positive$9.99Defense Task Force - Sci Fi Tower Defense
Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.
Replayable
54% of 35 Steam reviews are positive$2.99Siege of Centauri
Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.
Replayable, Tense
64% of 352 Steam reviews are positive$14.99Colony Siege
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.
Replayable, Tense
91% of 199 Steam reviews are positive$19.99Shuttle Siege
A sci-fi Tower Defense game where your space shuttle is invaded and you have to build mazes of defensive towers to stop the enemies.
Replayable, Tense
75% of 4 Steam reviews are positive$4.99Module TD. Sci-Fi Tower Defense
This is Sci-fi Tower Defense created by gamers for gamers.
Replayable
59% of 44 Steam reviews are positive$9.99Defense Grid: The Awakening
Aliens are after your power cores, and only towers stand in their way. Defense Grid is tower defense done with real depth: ten tower types, mazes you build yourself, an economy that rewards patience, and levels you can solve a dozen different ways. Easy to start, hard to master, very hard to put down.
Replayable, Tense
96% of 4,547 Steam reviews are positivePlayers online now: 62$9.99Sentinel 3: Homeworld
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.
Replayable
81% of 142 Steam reviews are positivePlayers online now: 1$5.99Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
Replayable, Tense
81% of 665 Steam reviews are positivePlayers online now: 3$14.99Loopstructor
Loopstructor is a casual strategy game that mixes tower defense with roguelike runs. Your towers are vehicles riding on loops you draw yourself, so planning the track is planning the defense. With random nests, bosses, and new builds each run, it suits players who enjoy tinkering with routes and synergies.
Replayable
81% of 345 Steam reviews are positive$6.99Broken Universe - Tower Defense
Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack. A variety of stages that change each time depending on how you play them.
Replayable
90% of 289 Steam reviews are positive$9.99Planet Modular TD
Tower defense offline game with many defense strategies. Gem of TD games
Replayable, Tense
60% of 10 Steam reviews are positivePlayers online now: 1$9.99
Cheaper than Loop Defense: Acquisition Protocol
Shuttle Siege
A sci-fi Tower Defense game where your space shuttle is invaded and you have to build mazes of defensive towers to stop the enemies.
75% of 4 Steam reviews are positive$4.99
Space Cycle
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.
93% of 179 Steam reviews are positive$1.99
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
2112TD: Tower Defense Survival
Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi…
87% of 433 Steam reviews are positivePlayers online now: 2$4.79
Defense Zone
Stunning detail of levels, in-depth gameplay, finely tuned balance of all levels and turrets.
80% of 80 Steam reviews are positive$3.99
Artificial Defense
Artificial Defense is a one man made, real time strategy game combining orbital shooter and tower defense components within an electrifying, virtual…
76% of 71 Steam reviews are positive$2.99
UIFO DEFENSE HD
UIFO Defense has a special gameplay of tower defense. Utilize the terrain and different turrets to eliminate alien invaders and protect the crystal…
71% of 41 Steam reviews are positive$4.99
Space Base
Space Base is an action-packed tower defence game, where you aim to protect your planets from the incoming forces of enemy ships and aliens by any…
$4.99
XENOBREAKERS: Classic Tower Defense
Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system.
82% of 68 Steam reviews are positive$4.99
Defense Warfare
Defense Warfare is a large-scale hero defense, with stunning graphics, unique level environments, and different game mods.
86% of 7 Steam reviews are positive$4.99
Slime Pandemic TD
Defend the galaxy against a slimey pandemic in this classic Tower Defence game.
100% of 18 Steam reviews are positive$3.99
Hidden gems like Loop Defense: Acquisition Protocol
Space Cycle
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.
93% of 179 Steam reviews are positive$1.99
No Creeps Were Harmed TD
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm.
89% of 473 Steam reviews are positive$19.99
Axon TD: Uprising - Tower Defense
Stretch enemy paths with tiles, set up 40 towers and hold off waves of robots in runs, a campaign or matches with friends.
85% of 710 Steam reviews are positivePlayers online now: 18$19.99
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,254 Steam reviews are positivePlayers online now: 324$17.49
Loopstructor
Loopstructor is a casual strategy game that mixes tower defense with roguelike runs.
81% of 345 Steam reviews are positive$6.99
Broken Universe - Tower Defense
Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack.
90% of 289 Steam reviews are positive$9.99
IDUN - Frontline Survival
A single-player defense RTS where your turrets are not stuck where you built them.
76% of 702 Steam reviews are positivePlayers online now: 5$14.99
2112TD: Tower Defense Survival
Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi…
87% of 433 Steam reviews are positivePlayers online now: 2$4.79
Colony Siege
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics.
91% of 199 Steam reviews are positive$19.99
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
Taur
You defend a droid planet from orbit-scale invasions, firing the Prime Cannon while your turrets and droids hold the line.
79% of 2,020 Steam reviews are positivePlayers online now: 4$24.99
Siege of Centauri
Defend against thousands of enemies in this explosive tower defense game.
64% of 352 Steam reviews are positive$14.99
Newest games like Loop Defense: Acquisition Protocol
Rise of the Cones: Planetary Defense
Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop.
83% of 46 Steam reviews are positive$9.99
Mech Fortress
Mech Fortress is a sci-fi tower defense game where each turret has unique mechanics.
85% of 240 Steam reviews are positive$7.99
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,254 Steam reviews are positivePlayers online now: 324$17.49
XENOBREAKERS: Classic Tower Defense
Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system.
82% of 68 Steam reviews are positive$4.99
Cosmic Raze
Cosmic Raze is a sci-fi tower defense strategy game. Control advanced weapons, build powerful synergies, and then blast away as aliens attempt to…
81% of 21 Steam reviews are positive$3.49
Defense Builder
Defense Builder is a sci-fi tower defense game. Players can build various defense towers to resist enemy attacks.
68% of 47 Steam reviews are positive$12.99
IDUN - Frontline Survival
A single-player defense RTS where your turrets are not stuck where you built them.
76% of 702 Steam reviews are positivePlayers online now: 5$14.99
Space Cycle
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.
93% of 179 Steam reviews are positive$1.99
Rogue Station Defense
A rogue-like sci-fi Tower Defense strategy game with infinite replayability!
100% of 5 Steam reviews are positive$7.99
Axon TD: Uprising - Tower Defense
Stretch enemy paths with tiles, set up 40 towers and hold off waves of robots in runs, a campaign or matches with friends.
85% of 710 Steam reviews are positivePlayers online now: 18$19.99
Loopstructor
Loopstructor is a casual strategy game that mixes tower defense with roguelike runs.
81% of 345 Steam reviews are positive$6.99
No Creeps Were Harmed TD
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm.
89% of 473 Steam reviews are positive$19.99