Old-School Essentials: Advanced Expansion Set adds the character and campaign options of Advanced Fantasy to groups that already own the Classic Fantasy rules. The boxed collection broadens classes, races, spells, monsters, and treasure while preserving Old-School Essentials clean organization and fast reference.

It is an expansion rather than a standalone game and is intended to be used alongside the Classic Fantasy rules books.

• Expands Classic Fantasy with Advanced Fantasy options
• Additional characters, spells, monsters, and treasure
• Requires Old-School Essentials Classic Fantasy