The E-Sports industry is entirely reliant on the games most popular at the time. Most games that make it into the e-sports scene need to be multiplayer and regularly updated to keep up with player demand and keep player interest. Games that follow this format are the ones that outlive the lifespans of other games, making them a staple in the competitive gaming industry.
Games like League of Legends, DOTA 2, and CS:GO all have had longer lifespans that keep people playing competitively because of their developers’ constant attention to the game. Overwatch and Street Fighter V are both newer games entering the competitive scene. Overwatch in particular is one of the fastest growing e-sports games because of Blizzard Entertainment’s attention to fans. They keep people playing by updating and adding new content for free instead of charging each time for additional content.
The key for games to have a long stay in the e-sports scene is to make a multiplayer concept that first catches the attention of enough players, and then to tweak the game in order to keep said players happy. That is exactly what games like Overwatch, League of Legends, CS:GO, and DOTA 2 are doing.