It might be a good idea to have a button in the library that randomly selects and suggests one of the countless games you own to play. For someone like me, who has more than 100 games, it can be really hard to decide what to play. You should also be able to set filters fpr tags or names or is the game installed or not, that take certain preferences into account. For example, if I don't want to play shooter games, the random generator should only show games that aren't shooters.