Master of the Rogue Spire is a new RPG system with simple rules, lots of customization, and an old-school feel. It's OSR-adjacent, but it isn't trying to reproduce the first tabletop role-playing games. Its goal is to recapture the freedom we felt playing games with fewer rules and more imagination. 
 
The boxed set is the complete version of the game, with all 3 rule books, a starting adventure, character sheets, a custom Tarot card deck, dice and tokens.