Humans interested in reproducing can list several good reasons to rear children, but the best reason usually goes unspoken: you will need your offspring to avenge you when you inevitably wind up impaled on a spike trap in the basement of a demonic castle. Rogue Legacy by Cellar Door Games is a 2D platforming game that reminds us (without much sentiment) that our children are the future. It's also a terrifically fun romp.