'Dota Underlords', the quirky new game from massive 'Dota 2' studio Valve

'Dota Underlords' is the first big studio response to the popularity of 'Dota Auto Chess'.

Split off from one of the world's biggest games, the fan-made Dota Auto Chess has been one of 2019's surprise successes. It now has fresh competition from Dota Underlords, just days before another pro-team creation, Teamfight Tactics,joins the field.

What is Dota Auto Chess?