Dragonslayer RPG
v3.0Core Mechanic
Roll d20 + attack bonus against descending Armour Class to hit in combat. Saving throws are roll-over by category (Breath, Death, Stone, Wand, Spell). Initiative is d6 per side each round. The GM (Maze Controller) tracks time, light, encounters, and resources — torches burn out, rations deplete, and random encounters escalate with noise and delay.
Best For
OSR veterans who want a traditional dungeon-crawling experience with descending AC, strict resource management, and classic class-and-level gameplay — especially fans of Barrowmaze and megadungeon play.
Highlights
Comprehensive old-school toolkit with 11 classes and 8 races, heavy emphasis on dungeon exploration procedures (marching order, light, time), critical hit/miss tables add combat drama, designed by a megadungeon expert, extensive spell lists and equipment
Considerations
Descending AC and THAC0-adjacent math will alienate modern players, very large rulebook for an OSR game, tightly bound to classic dungeon fantasy, limited innovation beyond curating and polishing older mechanics