Costlemark Tower is a dungeon in Final Fantasy XV. It is a part of the Treasure beyond measure quest given to you by Dino, and it can be difficult to beat. The first problem you’ll encounter is how to enter Costlemark Tower. Once you’re in, you’ll probably need help finding the Emerald stone location or discovering how to defeat Jabberwock boss that is located in the innermost sanctum. In this guide, we’re going to show you a FFXV Costlemark Tower dungeon walkthrough, to help you clear the instance.
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How to enter Costlemark Tower
Entering Costlemark Tower is only possible at night. Go to the location on the map after 8 PM and the dungeon doors will be open. Check out the map below to see the location of the dungeon. Make sure you are well-prepared for this quest, because it is full of dangerous creatures, and will spawn swarms of enemies at some moments.
In the room on the right, you will find the Durandal Sword. Go to the left side of the dungeon, and head straight. You will find the Oracle Ascension Coin at the end of the path. Turn left and head onward to the lower part of the dungeon. Along the way you will see two golden doors. Behind the first is a Mega-Potion and behind the second golden doors is the Platinum Bangle that considerably increases maximum HP. Also, you will find the sources of ice and lightning magic, so make sure you drain them.
You will find yourself in the long hallway, full of dangerous Galvanades and Ereshkigals. Continue down the circular path and you will come across a bridge that is guarded by the Yojimbo ronin. Pick up the Mega Phoenix once you defeat him, and head down the path. You will enter a room that is filled with square-shaped signs on the floor.NOTE: Always check the minimap, because it will show you the way you should go in the labyrinths to come.The red switches will send you back to the entrance – avoid them. The floor panels are actually elevators – three are traps, one will take you further. The traps will lower you into a room with a bunch of monsters. Each visit will spawn more and more of them, and the game won’t let you leave until you’ve killed them all.
You can only activate one tile at the time. Every tile will lead you to a wave of enemies that you must defeat.
As far as we know, the panels are randomized, so the right one for you could be different than it was for us. For us, the one in the southwest was the one that led us forward. The best advice we can give you is to memorize which ones you’ve already tested and not step on them again. You’ll need to step on the wrong ones a couple of times first, before the game unlocks the correct path.You’ll know you’re on the right path when you don’t end up in the large room again. Keep going towards the east. You might need to make detours, but always keep going east. When you get to a place where you can choose between two paths, take the one leading east (there’s a round carving on the floor in front of the cube you should push). The one to the south will lead you back into the elevator room – stay away from it.
Jabberwock boss fight
Jabberwock is a giant dragon-like creature and he is the last monster that you need to kill in order to finish Costlemark Tower. He is a level 58 boss, but since you’ve come this far, try to endure this battle as well. The good thing about him is that he doesn’t spawn more minions with him, and you can focus only on him in order to finish the dungeon. He is very large, but so is the arena where you will fight him, so you can have some time for a breather when you move away from him.
His attacks have a long range, so make sure to not rush into him. Instead, try and to approach him from behind. At the end of the fight you will receive two Jabberwock Sirloin, but most importantly, you obtain Sword of the Tall, a greatsword that is one of the Armiger weapons in the game. After you defeat the boss, step on the red plate. It will teleport you back to the entrance.
Costlemark Tower Locked Door
In the square room, you will see a small gap in the wall. If your crouch through the there, you will notice that there is a secret locked door there that you can’t open. Lots of dungeons have these, and you can get the key to open them later in the game. Check out how to open them in the FFXV Dungeon Locked Door guide.
Vladimir Pantelic is a gamer, writer and a chill guy who rarely loses his cool. When he isn”t writing about video games, you can usually find him playing basketball or paintball.