From the description: The Wind in the Willows Adventures is a Mausritter adventure setting box set full of hours of exploring fun! Includes: d20 Spark Tables Mini Zine Hex Crawl Mini Zine (Hexes by Nate Treme) NPCs Mini Zine, with character straight out of the beloved children's book Encounters, Bestiary and Items Mini Zine A Micro GM Screen A Hex Map NPC paper mini figs from the #paperminijam This Adventure box set can be used for solo players or for anyone who plays Mausritter and this whole box is Compatible with Mausritter.