Loot (found at lootproject.com or as “Loot (for Adventures)“ on OpenSea) is a project originally created by Dom Hofmann where lists of randomized adventurer gear (as could be found in games or stories such as D&D or The Witcher) are generated as NFT's and stored on block chain.
Loot is more concept and community than it is a product/service. To get a better understanding of what Loot is and how it works, see the articles listed below:
Loot was listed as the #5 Product of the Day on Product Hunt on September 5th, 2021