


The low-poly models, simple textures, and basic effects of Defense of the Ancients have understandably transformed over the years, most markedly in the move to a Valve-backed Source engine game-and then again as it was ported to Valve's Source 2 engine a few years later.

Dota 2 has come a long way since its initial 2003 release as a mod for Blizzard's Warcraft III.
