Nacho Simulation Football League Welcome to the main thread of the Nacho Simulation Football League (or NSFL for short)! This is a Sim league that uses my custom American Football simulation engine, and posts games in play-by-plays viewable on Youtube, with Game Stats listed on the Video description. The league runs bi-annually, a Winter season (after the Super Bowl) and a Summer season (after the NFL draft) using a keeper system. Teams compete for the highly esteemed Quacamole trophy each