For example, the Metacritic review for Labyrinth of Refrain calls it a “DRPG”. I have found other video games tagged as “DRPG” in blogs, but with no explanation of the term. They all seem to be Japanese RPGs but I thought the initialism for them was JRPG. Are DRPGs some subset of JRPGs?
Other searches turn up definitions for pen-and-paper RPGs or other wrong context definitions.