With millions of new players worldwide every year, it is safe to assume that Dota 2 is on of the top competitive multiplayer games of the current generation. Dota 2 continues to be the fifth highest watched game of all time on Twitch. Over the years, there has been a very slow decline in interest, but Dota 2 is hitting the right note where it counts.
Dota also has been involved with some dApps and prizes distributed via Crypto.(https://www.coinwire.com/dota-2-welcomes-crypto-challenges-with-firstblood-dapp)
Each of the ten players in a match independently controls a powerful character, known as a "hero". There are currently 122 possible heroes to choose from, each with unique abilities and differing styles of play.
Players have their favorites and hero names might make for valuable ENS names. Players might want bragging rights and also be a handle in game to buy and sell virtual items.
There are websites like these that show the popularity of heroes among players (see pick rate: https://www.dotabuff.com/heroes/trends?date=year). For our analysis, we have 15% and above as popular heroes
There are currently 122 heroes in Dota 2 check out their ENS availability here:
As a bonus, dotatwo.eth is available.