ELEMENT TD SERIES

Element TD is a survival tower defense game. you play with your friends to who reachest the farthest.

what is interesting about this game is the concept of 'elements'. a combination of fire + water = vapor tower, a combination of water + nature = well tower.

you can combine up to three elements. and there's even a 'periodic tower of elements'.

there are two main strategies when playing competitively online:
a.) Income based. where you you don't spend gold and every few second you gain interest from it.
and
b.) Clear Speed based. because when a player finishes a round. the countdown for the next wave will tick for every players.

It has a very long history.
It started out as a custom map for wc3 or atleast that's what I know.

then a flash-based version.

then a sc2 custom map version

then a dota 2 custom map version

then a mobile version

and now the current one. Element TD 2