Generally used to describe any adventure game with a frequently used combat system that uses statistics and randomness. CRPG characters develop a history and abilities as the story unfolds. The most well-known CRPGs are the Wizardry, Ultima, Bard's Tale, and Final Fantasy series, as well as adventures produced by SSI under license from TSR.
CRPGs generally do not subscribe to the interface conventions of parser-driven IF. Commands are delivered by keystrokes or button-pushing rather than complete sentences. Two notable exceptions to this rule are Beyond Zork and Eamon.