GM Calculator tool for Windows. Hobby project for playing RPGs online, and a good excuse to learn about Recursive Descent Parsers.

• Common dice rolls (d2,d4,d6,d8,d10,d12,d20,d100)
• Easy access to multipliers and modifiers, e.g. 2d10+3
• Advanced expression parsing, e.g. (2d20+13)*1d(2d6)
• Arbitrary variable storage for use in expressions, e.g. 1d12+STR
• Integrated Help