From the introduction:
This first-level adventure is designed for D&D veterans and complete beginners alike. It only uses rules, items, monsters and concepts found in the free basic ruleset that can be downloaded from the Wizards of the Coast website.
That means that you and your friends can play this without having to buy anything other than snacks, drinks and maybe some dice - though even these can be replaced by the many free Dice Roller apps available for phones and tablets.
The scenario is distributed as a ZIP archive containing four files:
- Scenario (4-page PDF)
- Printer-friendly Scenario (4-page PDF for printing)
- Player Handout (1-page PDF print-and-play component)
- Map (1-page PDF)