We've always thought that aliens look like green humans with big heads and huge eyes. We cannot even imagine that aliens look like crystals. Hostile crystals that destroy everything on their sight. And only plants can defeat them.
Symbiosis is an innovative game where your main objective is to destroy crystals using powers of your plants. Tons of upgrades, spells and achievements. 15 challenging levels. Have fun!
UPD: Many players are asking what golden symbiosis do. Sorry for not making it clear in tutorial. The Golden Symbiosis is just the powerup for your regular symbiosis. So after getting it your symbiosis (transferring energy from one plant to anothers) becomes a little stronger. It's a passive skill so you don't need to enable it.