Another achievements bug fix

Castle of no Escape 2

Explore 6 x 6 x 6 = 216 rooms of randomly generated hazards and enemies while collecting the necessary artefacts. Hundreds of monsters are roaming inside, guarding the sword shards — the last known thing to be capable of defeating the demonic castle owner.

We've accidentally left an important checkbox unticked in the game engine (twice), now that's fixed (again).