[Quoted from the Product Overview: http://heroesagainstdarkness.blogspot.com/p/heroes-against-darkness-overview.html] Heroes Against Darkness is a free, fast, flexible, and fully-featured fantasy d20 RPG system. The game is quick to learn and play, while offering progressively greater options and flexibility as players develop their characters and explore the breadth and depth of the system. For Players: • A game that’s fast, fun and deep • Streamlined rules system using unified mechanics • Eleven character classes for all play-styles • Three martial classes: Warrior, barbarian, berserker • Two specialist classes: Rogue, hunter • One hybrid class that combines magic and martial: Hospiter • Five magi classes: Warlock, healer, canonate, necromancer, mystic • Extensive character background and skill options • Fast character building with plenty of depth • Martial and specialist classes get meaningful combat choices through class-specific techniques that are based on trade-offs and the unique capabilities of each class • Anima points-based magic system with five main schools focusing on each of the following; physical, healing, protection, necrotic and controlling For GMs: • A system that’s easy for the GM to set up and run • Intuitive and clear rules • Set up unique combat encounters in minutes • Easy on-the-fly conversion of adventures from other systems • A simple ability test system for non-combat challenges • Support for long-term campaign play • Extensive GM’s Guide to help run the game • Huge bestiary with over 80 monsters • A framework for quickly making custom monsters • A comprehensive world-building guide • Appendix of key tables for GMs