New answers tagged dnd-bx
Go to Drivethrurpg and select the rules system "D&D" and the subsystem "Basic/BECMI" then sort by price (resulting page). This includes several free beginner adventures for B/X D&D but you'll have to search the list to find the ones that meet your needs. There is also a shared spreadsheet of products released in the OSR (a loosely affiliated set of ...
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