Grimrock

Would someone please teach me how to do this, similarly to how they do it in the game, also while i have questions what are those heads that are having an existential crisis called so i can put them in my map?
I apologize if there is already a thread about this topic.

You should open Isle of Nex in the dungeon editor for this sort of thing. Here's a dungeon editor file that will load it. The stone philosophers actually have multiple objects (one for the mine wall, one for the forest wall, etc.)
The essence conversion happens automatically on a beacon_furnace object, just set the "element" text box to the name of the element you want; it will create an "essence_"..element object, so you would just enter "fire" to get the essence_fire. This works for any string, not just the original essences! Remember to put the corresponding rune decal on the furnace (e.g. beacon_furnace_rune_earth) so that the player knows which essence will be created.

minmay wrote:You should open Isle of Nex in the dungeon editor for this sort of thing.

Possibly the best thing I ever did. Should be mandatory - it answers so many questions