Not every game can be taken as a basis for competitions, because it should be minimal chance, in the first place put the skills and training of the player or team pinnacle esports
If you touch the audience, this is a multimillion army of fans of a wide variety of 3D games. They are watching world events with interest, and some even manage to make money in the sweepstakes, making bets on eSports in DOTA, CS, WOT and many other games.
Perhaps you do not know, but special bases for training cybersportsmen (analogues of training bases for ordinary athletes and teams) are common in Asia. These places are equipped with everything necessary for training and education, improving the response, conducting theoretical and practical exercises. There live and train eSports professionals.