The Dota series began as a mod for which game?

The Dota series began as a mod for which game? The Dota series began as a mod for Warcraft III: Reign of Chaos.

The original Defense of the Ancients, commonly abbreviated DotA, appeared in 2003 as a community-created mod for Blizzard Entertainment’s Warcraft III. Its creator used the pseudonym Eul. The mod transformed Warcraft III’s units, abilities, terrain, and editor tools into a competitive format centered on controlling a powerful hero.

After Warcraft III’s expansion, The Frozen Throne, released later in 2003, several related versions and clone mods competed for players. DotA: Allstars became the most successful branch. Steve Feak developed it, and IceFrog later became its lead designer. IceFrog was eventually hired by Valve to lead development of the standalone Dota 2.

This origin explains why Dota 2 retains familiar MOBA ideas such as lanes, creeps, towers, hero abilities, and a central base objective. Warcraft III was the host game and creative toolkit—not a later Dota title. Dota 2 is therefore a sequel and modernization of a mod, rather than the first game in the series.