Quite an impressive showing of what the RPGMaker engine is capable of, all while the art and atmosphere combined create a memorable experience. Something to note is that the catacombs can feel a bit repetitive and empty to explore when not having a specific reason to be in them. Do try to take note of signs as well, particularly those in front of tombs, as there is a direct lack of mapping.
With polish, this will become quite a gem. Solid work, Skada, keep it up.