Welcome to Promise is packed full of a ton of new content to help you run this boxed experience and has tools you can use in your other Arkham RPG adventures, too! To start, you’ll find the basics needed to run the game, including the 64-page Welcome to Promise adventure booklet, a 16-page rules appendix (which can be used as a reference for your other Arkham RPG sessions, too), 18 six-sided dice (12 black and 6 green dice), and five investigator portfolios (more on these later). With these items alone, a game master could run the game for up to five friends.