In Tower Defense: Monster, you'll have to defend yourself from the army of monsters that come to invade your village.
To stop them you have an army of soldiers, archers, and some special weapons like an automatic catapult, explosion fire launcher, time stop, teleporter, and others weapons.
Build different army towers along the road.
The archers will shoot arrows at the nearest monster on their reach, while the catapult and fire-throwing weapon are fired in a straight line.
You can make the soldier stop at the most strategic place to avoid monster invasion.
Find the easter egg, have fun (hint) and take advantage of it.

Upgrade your tower during battle, using the money you earn when killing monsters.
Call the next wave to show you are ready, this will give you some award in coins (tip).
Different difficulty levels are available for the same stage, which will reward you with the highest difficulty (hint).
Between levels, wisely invest the diamonds you have earned by upgrading your towers.