I changed my idea of a tower defence to a space-invader-like.

“Trees want to help a bird because they are sad it got only one egg while they have got a lot of seeds.

So they throw seeds to monsters that try to eat the eggs (wasps, bats and edgedog).”

There will be different trees with differents ammo (oak with high damage seeds, poplar with “freezing” seeds and ash with boomerang seeds), but in the first versions of the game there will be only oak.

I finished a first “playable” version of the game, without graphics (only rectangles). Now I’m going to make some sprites.

You can try the demo here. It’s works with firefox, chrome and IE but I recommand firefox because of the lack of tests on the others browsers.