Valve's early-access auto-competition game Dota Underlords has lost the majority of its players in the six months since its launch on Steam; according to Steam Charts, the game had over 200,000 concurrent players at its peak in June, but in the past day has dropped below 15,000.

Reddit.

Reddit user SharkyIzrod found that the average player count has dropped to just over 11,000, and peak player counts are below 20,000, although autobattlers seemed to be the focus when Underlords launched, Since then, interest in the genre as a whole seems to have declined considerably.

Their numbers have consistently declined month after month, and it still seems unlikely that updates will bring players back. However, recent Steam reviews are still mostly positive, and there does not seem to be widespread dissatisfaction.

Unfortunately, it reminds one of the troubles with Artifact, which Valve had to suspend and now has an average player count of about 100. In that case, however, the outflow was more immediate and severe, and Underlords has not yet reached that point.

Teamfight Tactics, Riot's autobattler bid, seemed to be doing better when the company last released numbers; it appears to have had 33 million monthly players in September. The future of this genre seems less certain.

Although the decline was less pronounced, Dota 2 also had a relatively slow month; in the first half of 2019, it was close to its 2015 and 2016 highs, but in the last 30 days it averaged 393,589 players and peaked at 627,790, down to its lowest level since 2014.