Taking this as a general LoG 2 modded thread:
I just dropped Legend of Grimrock 2, The Lost City.
I picked this up because it was by the guy who made the Eador Strategy RPGs on Steam.
It is fairly good, but quite different from the main game. It feels entirely balanced around dancing around enemies, even on normal. In the base game many fights can be one by just trading blows with the enemy, even on hard. Here you really need to dance around and charge blows, also kite a lot with spells and missiles. Also the main game is overloaded with small riddles and clever tile puzzles. Here it is all about finding hidden buttons and keys which you need to apply in different places. So it feels a lot less Grimrock, and a lot more just general exploration rpg.
My biggest gripe with it was the way the loot was sprinkled about. Some of the few actually clever puzzles have atrocious rewards (like one +1 Strength permanent potion and a piece of cheese), while continuing the main game by unlocking wind gates can give you an entire upgraded armor all at once.
This is because the game actually has a currency system (gems) and a quest system. I do not think they fit the core engine all that much overall.
Despite some warnings I received food is absolutely abundant, especially if you trade in a few blue gems for more food.
Overall this made the mod feel a lot more like a normal rpg with real time blobber combat, and a lot less like Grimrock. I actually like both Grimrocks a lot, so this was not what I am searching for.
Still a very high quality mod, and worth playing for people with more patience than me.
After 12 hours or so I had a party of level 12, and I think I finished more than half of the mod.
Recommended, but not for everyone, and especially not for me.
Also a small warning, keep all skulls you collect because one puzzle needs them, watch carry weight, this mod overloads you with loot, and absolutely get the water breathing spell, it is essential.
https://steamcommunity.com/sharedfiles/filedetails/?id=333265124