Tower Defense

1. Desktop Tower Defense and Desktop Tower Defense 1.5 and Desktop Tower Defense Pro You have to stop your enemies, or “creeps,” from traveling all the way across the screen.
2. Onslaught and Onslaught 2 Build turrets to defend your base from the oncoming attackers who will approach down the road.
3. Ant Buster Stop ants with stuff. Fun tower defense.
4. Potion Panic Simple yet fun TD.
5. Imminent II Base defense with upgrades.
6. Final Fortress Army style base defense.
7. Flash Circle TD Pretty/basic tower defense.
8. Xeno Tactic Tower defense where you make the path the baddies follow with your turents.
9. Momentum Missile Mayhem Base defense where you use your weapon like a slingshot.
10. Defend Your castle Carpal tunnel warning!
11. Pillage the Village Click and throw villagers.
12. Anti-TD Create units that need to reach the exit passing through enemy towers.
13. Bloons Tower Defense 2 3 Stop any Bloons from escaping the maze by building and upgrading bloons popping towers.
14. Canyon Defense and Canyon Defense 2 Build an ideal defense system and save the inhabitants from the waves of enemy attacks.
15. Planet Defender Survive the onslaught of alien invaders by building a variety of weapons, defenses and other structures.
16. Gemcraft WARNING: if you like RPGs and Tower Defense games, you will never ever have free time again if you click this link
17. Protector, Protector II, Protector III, Protector IV Deceptively simple to play, yet so many avenues and strategies to master.
18. Gem Tower Defense A game of strategy and luck.
19. Stormwinds 1.5 Steampunkish tower defense/shooter.
20. Vector Tower Defense 2 Eliminate the Vectoid threat before they reach the end of the path.
21. Flash Element Tower Defense 2 Defend your elements from waves of monsters by constructing defenses along the path.
22. Red Code Protect your base side scroller alien shooter with upgrades.
23. Eternal Red Part defense game, part shooter.
24. Attack of the Evil Bunny Empire A unique tower-defense game with a physics twist.
25. Mushroom Revolution
26. Frontline Defense
27. Gemcraft: Chapter 0 Goodbye free time
28. Frontline Defense: First Assault
29. Canyon Defense
30. Mars TD. Mars TD. 8-bit styled Tower Defense game. I hope you read Japanese.
31. Corpse Craft Defend your fort, whilst attacking the other kind of game with a touch of puzzle gaming to build your forces.
32. Epic War
33. Stormwinds: The Lost Campaigns It's live action and you have to defend your fortress from waves of enemies.
34. Get off my lawn Defend your beloved lawn from a variety of enemies in this fast-paced action game from HotAirRaccoon.com. As the lawn-loving Blue Mollet, it is up to you to keep other Mollets off your grass, by running them over with your lawnmower!
35. Bloons Tower Defense 4 Very polished tower-defense game, comes recommended.
36. Bubble Tanks Tower Defense From the creators of bubble tanks 2.
37. Autobot Stronghold Tower defense based on the first Transformers movie.
38. Mencia Madness 3 Aside from the subject, a decent tower defense game.
39. Cursed Treasure A "fancy" version of Element TD with a few limitations, skill points, and spells thrown in.
40. Last Command Tower Defense game.
41. Protector IV Newest in the series.
42. Born of Fire TD Tower defense game that uses a set number of characters that you must level up, allegedly gets tedious (but what TD game doesn't?).
43. Fujitsu Defender Tower defense game...
44. Wasteland Defender
45. New Bubble Tanks TD
46. Master of Fortresses It's your standard defence game except the units attack everything you make, lots of upgrading and all that, really fun. Your forts end up looking pretty sweet by wave 20.
47. Little Protectors It's fairly hard until you get enough skill points and blueprints to break it horribly.
48. Bunny Flags It's a combination between a tower defense game and a twin stick shooter, with talent trees so that you can get stronger in one or the other.
49. Ghost Hacker Build towers and attach the appropriately colored upgrades to them to prevent cyber nasties from stealing your data cores.
50. Demons Took My Daughter This one is like a defense where you use blocks to attack and kill demons before they steal your stuffed animals.
51. King's Guard Combined defense, RPG and switcher game.
52. Gemcraft Labyrinth Free time gone link.
53. Pokemon Tower Defense Exactly.
54. Protector IV.V Featuring 7 new storyline campaigns and several individual storyline quests.
55. PSN Protector A simple tower defense game where you try to save the psn servers from hackers.
56. Kingdom Rush Very polished and engaging tower defense game.
57. Shore Siege 2 Base defense game, pretty well made.
58. Duty Hill Base defense shooter. Very short and easy, 15 minutes at most.
59. Long Way A western-themed tower defense with many upgrades and RPG elements.
60. Leave Cthulhu Alone You have the ability to mutate enemies into different monsters to keep other enemies away from the priest who is trying to resurrect you.
61. Bloons Tower Defense 5 Very similar to the earlier version, but even more RPG-elements.
62. Hands of War Tower defense with a shit ton of upgrades/talents/hard modes.
63. Defender's Quest Here's a very nice TD/RPG game. It's on the "Demo" but it has quite a bit of play in it already.
64. JRPG Defense Basic tower defense. "This is way too unintuitive and has no proper tutorial to compensate.", to quote a review and going in blind is kinda fun, to me. While good graphics and decent music, nothing new.
65. Castaway Island TD Well-made TD game, limited upgrade points so not a grinder, good fun.
66. That's My Dungeon Tower defense where you're protecting your dungeon from people trying to steal your treasure. While the graphics are not up to par, the game play is pretty solid. Good time waster. Pretty tough, too.
67. Monsters TD Side scrolling tower defense with some cute graphics. Nothing new but the author is constantly updating it pretty quick.
68. Tripple Tower Defense Nice TD with puzzle aspects. Combine 3 towers to make a stronger tower in a simple grid.
69. Tech Magic Tower defense with mostly clicking and upgrades ect.
70. Worlds Guard Basic tower defense. Fun but nothing new.
71. Angry Bees It's like those 'defend the house' games. 20 levels, can buy powerups/weapons.
72. Billy Makin Kid Tower defense with a cool upgrade/making different units system.
73. iRemained Wall defense shooter with upgrades and pretty levels.
74. Minecraft Tower Defence 2 Minecraft in a tower defense game. Make your own paths to your "base" for the enemies to get to. Minecrafty as all fuck.
75. Paladog A castle/TD game with a moving 'castle'.
76. Map STD Tower defense with pretty basic mechanics. The gimmick is that it's built on Google Maps. Defend your own city from creepers.
77. Magic Smash Hammer Base defense where you wield a giant hammer, with upgrades. Nice music too.