Adams, Roe R. (November 1990), “Westward Ho! (Toward Japan, That Is): An Overview of the Evolution of CRPGs on Dedicated Game Machines”, Computer Gaming World (76): pp. 83–84, "While America has been concentrating on yet another Wizardry, Ultima, or Might & Magic, each bigger and more complex than the one before it, the Japanese have slowly carved out a completely new niche in the realm of CRPG. The first CRPG entries were Rygar and Deadly Towers on the NES. These differed considerably from the "action adventure" games that had drawn quite a following on the machines beforehand. Action adventures were basically arcade games done in a fantasy setting such as Castlevania, Trojan, and Wizards & Warriors. The new CRPGs had some of the trappings of regular CRPGs. The character could get stronger over time and gain extras which were not merely a result of a short-term "Power-Up." There were specific items that could be acquired which boosted fighting or defense on a permanent basis. Primitive stores were introduced with the concept that a player could buy something to aid him on his journey."
