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Online tower-defense Games
BigTree Defense Game

Plays: 12622
Category: Strategy Games
Control the growth of the tree, build weapons to defense the waves of insect enemies. 9 battles, 3 different style trees, 12 weapons(5 levels each), 20 different enemies.
Tanks and towers Game

Plays: 12426
Category: Fighting Games
It's an all out, combination of endless tank battles and tower defense! Try to withstand aggressive, incoming enemy forces and you must protect your MCV at all costs. Build a variety types of tanks and towers to defend and attack enemies. Destroy the enemy MCV to accomplish the mission for each level. In survival mode, try to withstand waves of enemies as long as possible without losing your MCV.
Space Invasion Tower Defense 2 Game

Plays: 12060
Category: Strategy Games
Ten levels of tower defense. You must defend your paths against enemies and acquire skill points to improve your defenses.
Penguinator 3000 Game

Plays: 11963
Category: Strategy Games
Defend your castle from the angry hordes of penguins in this tower defense game! Don't let a single penguin through to get the high score!
Million Dollar Tower Defense Game

Plays: 11918
Category: Puzzles Games
Million Dollar Tower Defense - Fund-raising taken to a new level - Play the game, buy some Sprites, and help make the world better! Lots of cool tower technologies, super weapons, non-linear gameplay, and an EPIC final boss (more to come as Sprites are bought too) make this a must play! Million Dollar TD is an awesome and unique fund-raising game in which people can buy and "own" the character sprites in the game. As a Sprite "owner", you can choose an image and associated link which will appear in the game as a character and on the official website. As the game spreads, your stuff spreads with it, potentially being seen by millions of eyeballs on the internets! Only 12,000 Sprites are available among all of the game levels. Buy as many as you want but once they're gone, they're gone. So make sure you reserve your Sprites as soon as possible! Learn more about this fundraiser at http://www.milliondollartowerdefense.com/about.php and see how my previous project can save the US health care system and the world $263 million annually! Help me and others start more high-impact projects and don't forget to follow this unique fundraiser on Facebook and Twitter.
BioBots Game

Plays: 11686
Category: Puzzles Games
An army of biodegradables and recyclables is just a light snack for your biobots!
Nano war demo Game

Plays: 11377
Category: Action Games
A Real Time Strategy Game (RTS),Action game. In the human body, you control the blue cells your opponent controls the red cells. Defend, attack, increase your cells and destroy them. Nano War demo : Multiplayer mode and level editor only avaliable on nanowar.free.fr.
Gem Tower Defense Game

Plays: 11262
Category: Strategy Games
Gem Tower Defense is a great tower defense game, where you can combine your towers (gems).
Storm Winds Game

Plays: 11231
Category: Action Games
StormWinds places the player in a steampunk setting, facing a massive invasion of airships and other flying contraptions. A blend between a tower defense game and a shooter, you must choose your defenses then use them personally to gain victory. This game is by far Hero Interactive's largest to date- over 10 people had a hand in the game at some stage in development. We've also upped what is offered to those who purchase the extra content for $5 USD. Players who make the purchase now get access to 2 new campaigns, new weapons, new enemies, a new boss, new challenge missions (as they come out), and cheat codes. In addition, when the beta of Bubble Tanks 2 is released, extra content purchasers will be invited to join in! A big thank you to everyone who supported the game, gave great feedback, and helped to bring this better version online!
Tree Of Life TD Game

Plays: 11176
Category: Adventure Games
Play tower defense games newest TD game tree of life, battle through 5-6 levels of mosters building your army of men from archers to mages. Complete with highscores
Bacteria Tower Defense v1.0 Game

Plays: 11051
Category: Strategy Games
An innovative maze-building Tower Defense game which is based on real bacteria, real antibiotics, real infections, and real interactions. Choose your antibiotics wisely to fight off the infections and save your patient. A fun way to relax and without you knowing it, you'll maybe even learn something useful!
Integrated Defence Game

Plays: 11043
Category: Strategy Games
Tower Defense game where you need to create a network of generators and cables to provide energy to your towers.
Line Tower Wars Game

Plays: 11004
Category: BoardGame Games
A tower defense game inspired by the player-created series of Starcraft and Warcraft maps "Line Tower Wars." Play against 4 other CPU opponents and achieve a top ten score!
Colliding Fronts Game

Plays: 10506
Category: Strategy Games
Colliding Fronts is tower defense game inspired by World War II theme. Aggressive German troops are trying to break through weak front lines. You must prepare and repel incoming forces. Defense asks some logics, so its healthy for your brains ! Main features: The game consists of 10 levels. Game difficulty increases as you progress through levels. There are 7 different bunkers, AA batteries, turrets to build based on WW2 military. Upgrading system has a very unique approach, where you spend money on upgrading tower damage, range and reload speed. To make things even more interesting there are 3 supporting buildings, which increase effectiveness of nearby towers. This makes game strategy a bit more advanced. Colliding Fronts has very rich particle, projectile and decal variety, which adds a lot of dynamic to it. To add even more dynamic to the game, sounds for every tower, collision are very polished and different from each other. One of the background features include automatic and manual game optimisation for better user experience even with a slower computer. 13 different enemy unit types: Prepare to slay down various enemy soldiers, from fast assault grunts to slow ultimately strong guys with panzerschreks. Your "hot potato" cannons should be aiming at Panzer III, Panther, Tiger and even unique Maus tanks! While anti-air guns should not count crows in the sky any more, because enormous zeppelin accompanied by Luftwaffes is coming. And many more features that make user experience as entertaining and easy as possible. All in all units are: 4 types of infantry 2 transport armored vechicles 4 panzers 3 planes and bombers.
Warzone Tower Defense Extended Game

Plays: 10503
Category: Action Games
"Warzone Tower Defense Extended" expands upon the original game adding new tower upgrades and other unlock-able enhancements.
Demonic Guardians Game

Plays: 10499
Category: Adventure Games
A Tower Defense game with rpg and fantasy elements. Create monsters and demons to defend your base from the invading heroes. Developer Site: http://www.vabolt.com/
Xeno Tactic2 Game

Plays: 9891
Category: Strategy Games
Xeno Tactic 2 is an absolute must for all the turret defense game lovers of you and makes a great visual impact! Stop the alien vehicles in their tracks by building defensive structures in this tower defense game.
Choose Your Weapon Tower Defense Game

Plays: 9639
Category: Strategy Games
The same nasty virus is back. This time it is after YOUR computer. Choose your weapons, place them, and watch the virus get eliminated.
Haunted Suburb Game

Plays: 9250
Category: Action Games
Zombies and Ghosts are invading! Defend the local neighborhoods by building and array of towers to shoot at them and open gates to redirect their hungry minds to places of choice. Compete for the highest scores in this new innovative tower defense game!
Cyberoids Game

Plays: 8828
Category: Action Games
Cyberoids is a tower defense style game moves a player in year 2135, in the middle of conflict between "Alliance" - a joined forces of human race fights against extraterrestrial species known as "Cyberoids". The player finds himself on a small planet lost in space. The war factory on this planet is one of the biggest factories the "Alliance" has to produce weapons.Obviously, the location of "Alpha" planet is no more a secret for the "Cyberoids". You need to protect it at all costs until the "Alliance" fleet arrives. The base has a workshop which can produce various defense systems to guard the area. Your aim is to prevent any infiltration by enemy forces until reinforcements arrive.

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Tips: For a scope shot game you can go to Gameplay and enable Ghost to remove player/enemy collisions. Use invincible if you don't want enemy fire to hit your scope either.