Dragonslayer RPG
v3.0Best 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.
Core 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.
It is classic d20-versus-descending-AC combat, with category saving throws and side-based d6 initiative. The depth is the familiar class-and-spell chassis, where ability scores gate races and classes and set most modifiers. Dungeon exploration and leveling carry the rest.
- Free to tryQuickstartA free starter you can actually play
- Get it nowSold newIn print or as a legal PDF
- ✓IndexFind any rule by page number
- ✓GM guidanceA chapter on how to run the game
- ✓Examples of playRules shown in action at the table
- ✓Quick referenceCheat sheet or summary tables
- –Cross-referencesRules rarely point to each other by page
4 of 5 book tools found in the core book
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
Rules license Proprietary
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