Also, perfectly playable at mobile (at least a couple of first monsters).

Edit: after fighting enough other sphinxes, the first one loads, but the west-most fails with an explicit error message:

> This challenge failed to load. Retreating.

On the next floor, the sphinx over the exit stairs fails, preventing me from progressing.

To make it clear that it is with an RPG (role playing game) it needs an "an" in the title.