Dungeons & Dragons: Chronicles of Mystara is a compilation of two coin-op arcade sidescrolling beat'em ups, Dungeons & Dragons: Tower of Doom and Dungeons & Dragons: Shadow over Mystara, and in addition to normal Achievements and Trophies, the game will also feature new in-game challenges to unlock things.
When a player completes an in-game challenge, they are given Vault Points. Vault Points unlock stuff like concept art and gameplay modifications. The game also tracks player preferences such as favored classes, as well as regular online leaderboards.
Dungeons & Dragons: Chronicles of Mystara will be released Summer 2013 on PC, Xbox Live Arcade and PlayStation Network for 1200 Microsoft Points ($15 USD.)