The Life Spirit

This is my entry for LDJAM 45. The key is to strategically arrange tiles so that the elements protect each other from incoming waves.

You can move the board around with the mouse and you can zoom in and out by scrolling up and down.

When a wave of an element comes in, tiles with the dominating element will protect those around it. Here's a chart of which elements resist which.

You can vote for it on Ludum Dare here: https://ldjam.com/events/ludum-dare/45/the-life-spirit