Bloons Tower Defense 5
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Click 'Allow' to play Helix Defense!
Click the Lock icon and change Block to Allow to play Helix Defense.
1. Click the i or lock-icon top left in the Chrome address bar.
2. In the Flash dropdown, select 'Allow'
3. Refresh the page.
Click 'Always allow' to play Helix Defense!
If you don't see the Flash option above, you can still enable Flash as follows:
  1. Open a new tab and go to
  2. Change Block (default) to Allow in the Flash section
  3. Reload the page

This game is using Flash! After the 31st of July 2019, your internet browser might start blocking Flash, especially if you use Google Chrome. This means you'll have to activate it to play this game.

RUN 3
Helix Defense
4 votes. 4.88 / 5
Helix Defense

Helix Defense

The objective of this game is to build turrets to stop waves of enemies from assaulting your space station's power core. Using energy to build and enhance your defenses is key to survival, but don't use it all up as energy is what protects your power core if any enemies get through! 

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