2008 · Kaynak kitap (oyunu geliştirmek için kurallar/seçenekler)

Blackmoor D&D 4th Edition: The Inventor Class

This roleplaying supplement introduces an inventor class for a fantasy setting. Characters rely on clockwork, steam, gears, springs, alchemical reagents, and conductive coils rather than arcane magic or divine power. Players create engineers and scientists whose devices provide abilities and combat options comparable to weapons and spells.