The God of War Niflheim Mist armour is arguably the best in the game, healing you over time and providing some excellent stat boosts. Handy generally, but definitely a bonus if you're taking on the New Game+ mode. To unlock it in God of War you'll need to first find and travel to Niflheim, and then face a relentless barrage of monsters in it's endlessly reshaping, poisonous maze. Get through all that and you'll be able to buy and upgrade the Niflheim Mist armour. It's hard work but worth it for some gear you won't regret owning.
Where to find the Niflheim Mist armor in God of War
So how do you get it? Well first you all need 4 pieces of the Niflheim Cipher, which unlocks the ability to travel to Niflheim in the Realm Travel Room. You can find these ciphers in purple chests throughout the game but the best way is to start the mission ‘Return to the Summit’ in the main campaign to find the first part of the cipher and then follow the story to find three more chests and complete it.
When you have all the chests you can use the Ream travel room to visit Niflheim where you’ll find Sindri waiting for you. Speak to him and he’ll tell you all about Ivalidi’s Workshop where the Mist armour lives and offer to make you a key to the workshop for 500 Mist Echoes. Next up is the easy part: head past Sindri into the first area and kill everything so you can open the chests and get the Mist Echoes inside. You might have to rinse and repeat this a few times to get enough, and be careful because if you die, you lose everything you’ve picked up.
How to get the Niflheim Mist armor in God of War
Once the workshop's unlocked you’ll find the pieces of Ivaldi’s Rusted Armour, which you can take back to Sindri to make into new armour you can wear and upgrade. It takes a lot of resources to fully upgrade a set so it’s best to pick one and stick with it, especially as a matching set has an even higher health regen effect. Go with The Deadly Mist set for a good all round stat boost, The Endless Mist set if you want more Vitality and Cursed Mist for extra Runic power.
In terms of how to get the resources you need, you can get the Mist Echoes, Haze Weaves, Niflheim Alloy and Aesirbane by running the Niflheim maze and getting out alive. You’ll also have to do some Muspelheim challenges to get Smouldering Embers and Greater Crest of Flame, and visit the Light Elf Outpost and Stone Falls in Midgard respectively to get Pristine Scales of the Realm and Pristine Dust of the Realm. All of that can be tracked the resource part of the menus so now you just have to get it all.