Virus Killer-Tower Defense

This is a unique mix of high strategy and tower defense game.
Features:
1.Upgrade your potion
Merge the same type of potion with the same number, your potion will raise a level. But remember! Potion types change randomly when you merge them!
2. PvP Mode
Apply various strategies according to enemy's map. Mix and match various potion and create your best powerful PvP map.
The longer you defend, the more difficult it will be for your enemy.
3. Alliance Mode
In the Alliance Mode, you cooperate with another player to defend against the enemy. You will get new potion by playing the Alliance Mode.

4.Simple and engaging game-play
Play the game anywhere and anytime.
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