Doodle God, Mushroom Farm Defender

Game Info - Prepare to puzzle hard, peeps. Start with the First Four elements: stone, fire, air and water. Combine them to make new elements: air + water = steam, right? Now make hundreds of elements!
Game controls - This game is played with mouse only.
Game Info - Place your mushroom towers and attack all the waves of enemies that are sent your way.
Game controls - Use mouse to interact.