Now playing: Frontline Defender
Build your defences by selecting towers from the menu on the right and placing them on allowed areas on the map. There will be levels where you won't have restrictions for placing the towers. Do not let the enemies to reach base. Cooperate with the other players to ensure better protection for the base. You can see description and capabilities of each tower from the menu on the right.
Manual:
It is played with the mouse and with the keyboard.
Roll over towers menu to open it.
[1] – [6]: Tower building shortcuts
[U], [S]: Upgrade / Sell selected tower
[ESC]: Close tower's info popup
[SPACE]: Cancel selected tower's building

