Elematter is a small, complete tower defense game by Jack Rugile, written for js13kGames 2014, where the whole game has to fit in 13 kilobytes. Enemies march along a fixed path across a dark grid and you spend fragments to put towers on the tiles beside it. There are four kinds, Earth, Water, Air and Fire, and each can be upgraded or sold.
There are twenty waves and thirteen lives. You can run the game at three speeds, and if you feel safe you can send the next wave early for extra fragments, which is where most of the risk and most of the fun is.
Controls
Click or tap an empty tile to build a tower, and a tower to upgrade or sell it. Play starts the waves; x1, x2 and x3 set the speed.
Genre
Tower Defense, Strategy, Minimal
Price
Free — no account, no download, nothing to install
Tips for Elematter
Build near corners of the path, where one tower covers two stretches of it.
A few upgraded towers usually beat many basic ones.
Only send the next wave early when the current one is nearly finished.