Siege of Centauri
Defend against thousands of enemies in this explosive tower defense game.
64% of 352 Steam reviews are positive$14.99
Games like Colony Siege
If Colony Siege scratched a replayable and tense itch for you, keep reading. These games are a good place to start.
Siege 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, Fast-paced
64% of 352 Steam reviews are positive$14.99Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
Replayable, Tense, Fast-paced
81% of 665 Steam reviews are positive$14.992112TD: 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 adventure.
Replayable, Tense, Fast-paced
87% of 434 Steam reviews are positivePlayers online now: 4$4.79TDS - Tower Defense Strategy
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends. Protect your Basin at all costs. An absolute Tower Defense, Real-Time Strategy Hybrid
Also in Co-op · Replayable, Tense
81% of 322 Steam reviews are positivePlayers online now: 1$17.99X-Morph: Defense
You are the alien. Build a maze of towers to grind down humanity's counterattacks, then jump into your fighter and blast the survivors yourself. Tower defense and a twin-stick shooter in one, with cities that crumble under real physics. Bring a friend on the couch and split the work: one builds, one flies.
Also in Co-op · Replayable, Tense, Fast-paced
90% of 3,311 Steam reviews are positivePlayers online now: 15$19.99Defense 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 4,551 Steam reviews are positivePlayers online now: 62$9.99No 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. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
Also in Co-op · Replayable, Tense, Fast-paced
89% of 473 Steam reviews are positive$19.99Outpost: Infinity Siege
Command a walking fortress that fights beside you. Loot ruined zones for parts, build up your outpost's guns, and hold the line when the machines come. First-person shooting, tower defense and base building in one loop, best with friends.
Also in Co-op · Replayable, Tense, Fast-paced
65% of 11,680 Steam reviews are positivePlayers online now: 53$24.99Tower Dominion
A roguelike tower defense where the terrain is your weapon. Tile the map into choke points and kill zones, pick from 30 heroes across three factions, and adapt your defenses wave by wave as the alien invasion keeps coming. Short runs, big decisions, and no two battles alike.
Replayable, Tense
85% of 5,278 Steam reviews are positivePlayers online now: 324$17.49From Glory To Goo
A sci-fi survival RTS where you build a colony on a hostile planet while waves of alien Goo close in. Expand, fortify and call down orbital fire from your ship overhead, then hold the line. Captains level up, factions play differently, maps are procedurally generated, and every run dares you to last a little longer.
Replayable, Tense
96% of 1,872 Steam reviews are positivePlayers online now: 115$11.99IDUN - Frontline Survival
A single-player defense RTS where your turrets are not stuck where you built them. Drag them around mid-fight, call down orbital fire, and hold the line against thousands of alien bugs while miners, carts and nuclear trucks do their slow, vulnerable work.
Replayable, Tense, Fast-paced
76% of 702 Steam reviews are positivePlayers online now: 8$14.99Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles! Snowy and Glacial maps, Desert and Arid lands! Prepare to defend the solar system against invaders!
Replayable
73% of 123 Steam reviews are positive$2.99
Cheaper than Colony Siege
Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
81% of 665 Steam reviews are positive$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 434 Steam reviews are positivePlayers online now: 4$4.79
TDS - Tower Defense Strategy
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends.
81% of 322 Steam reviews are positivePlayers online now: 1$17.99
Defense Grid: The Awakening
Place towers, shape the path and hold the line against waves of alien thieves in a colorful sci-fi strategy game.
96% of 4,551 Steam reviews are positivePlayers online now: 62$9.99
From Glory To Goo
Grow a settlement on a hostile world, wall it in, and answer the Goo with orbital fire before they reach your gates.
96% of 1,872 Steam reviews are positivePlayers online now: 115$11.99
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,278 Steam reviews are positivePlayers online now: 324$17.49
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: 8$14.99
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
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
Tower Wars
Build tower mazes to stop enemy waves while assembling your own armies to smash their castle first.
71% of 1,203 Steam reviews are positive$7.99
Protolife
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…
86% of 445 Steam reviews are positive$11.99
Hidden gems like Colony Siege
Toy Shire
Command green army men, build toy towers and hold the room against waves of old toys.
85% of 763 Steam reviews are positivePlayers online now: 25$9.99
D.O.T. Defence
Welcome to the frontlines! Build towers, muster armies, and conquer the map.
85% of 212 Steam reviews are positive$9.74
From Glory To Goo
Grow a settlement on a hostile world, wall it in, and answer the Goo with orbital fire before they reach your gates.
96% of 1,872 Steam reviews are positivePlayers online now: 115$11.99
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: 20$19.99
Frontline Crisis
Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis!
87% of 349 Steam reviews are positive$5.99
TDS - Tower Defense Strategy
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends.
81% of 322 Steam reviews are positivePlayers online now: 1$17.99
Artificial Extinction 2
A Tower Defense hybrid where survival depends on strategy and firepower.
77% of 121 Steam reviews are positive$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 5,278 Steam reviews are positivePlayers online now: 324$17.49
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: 8$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 434 Steam reviews are positivePlayers online now: 4$4.79
Newest games like Colony Siege
Toy Shire
Command green army men, build toy towers and hold the room against waves of old toys.
85% of 763 Steam reviews are positivePlayers online now: 25$9.99
D.O.T. Defence
Welcome to the frontlines! Build towers, muster armies, and conquer the map.
85% of 212 Steam reviews are positive$9.74
Artificial Extinction 2
A Tower Defense hybrid where survival depends on strategy and firepower.
77% of 121 Steam reviews are positive$19.99
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
Calyx
Build a fortified base on a hostile planet and fight back a spreading alien plant with tanks, flamethrowers and an orbital laser.
87% of 516 Steam reviews are positivePlayers online now: 72$24.99
TDS - Tower Defense Strategy
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends.
81% of 322 Steam reviews are positivePlayers online now: 1$17.99
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,278 Steam reviews are positivePlayers online now: 324$17.49
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: 8$14.99
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: 20$19.99
Northend Tower Defense
Build a defense from soldiers, vehicles and traps, then survive the waves in real time.
74% of 1,304 Steam reviews are positivePlayers online now: 1$7.99
Frontline Crisis
Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis!
87% of 349 Steam reviews are positive$5.99
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