Kirac's Vault Pass
Kirac's Vault Pass is a battlepass-like system which allows players to receive items and cosmetic microtransactions by completing Atlas objectives. The Vault Passes are only available for a limited time for the duration of a challenge league. Rewards must be redeemed in-game in the Kirac's Vault subarea of the Epilogue town Karui Shores after completing the requirements in the challenge league.
Seasons 1 to 4 of Kirac's Vault Pass included special microtransaction skins of various unique items that affect both the 2d and 3d item art, as well as additional special effects. These skins cannot be applied to Unique items used as Skin Transfers. Season 4 also introduced various Mystery Boxes as part of the Vault Pass rewards sometime after its initial release. These Vault Passes could only be purchased directly with money, but unlike supporter packs, they do not come with additional points.
From Season 5 onwards, the Vault Pass system was changed significantly. It now includes a "free track" that rewards all players with various in-game items related to the map system and a "paid track" for an exclusive cosmetic armour set and various Mystery Boxes. These Vault Passes can be purchased with points. Items from the free track cannot be claimed by characters in Ruthless mode or private leagues.
There is a fail-safe built-in that awards unlocked Vault Pass rewards at the end of the league even if a player didn't physically claim them.[1]
An additional copy of any Kirac's Vault Pass Weapon Skin microtransactions you have claimed so far can be acquired through the 'Unlocked' shop category for free for all one-handed Weapon Skins from the Vault Pass.[2]