“Creating a mere DLC or expansion to Grimrock simply would not have felt right. As today’s meeting proved, we still have a lot of ideas we’d like to explore, lots and lots of new content already done (originally made for a DLC/expansion) and a big engine update in the works. Simply put, a DLC would have limited too much what we can do. With a full blown sequel we can raise Grimrock to the next level.”
When they have more information to share about their work on this, they will do so in development update posts on grimrock.net.