Aetherial War: Untold Adventures

From BoardGameGeek:

A micro game that fits in your pocket, the Aetherial War: Untold Adventures is perfect for on-the-go dungeon exploration within the Aetherial War universe. As the little brother to the Aetherial War Card Game, don't let the small size fool you: this game packs tons of replay value and loads of achievements to try and accomplish. It may all fit inside a tin, but that doesn't mean it can't hold its own for when you're looking for a fun, light-weight game to break out and put away in under 20 minutes. -description from the designer