MetaKillers.io is a next-generation prison action battle game built on blockchain technology, featuring fighter knockouts and in-game earning opportunities. Players can equip and upgrade weapons to complete missions and earn NFTs and tokens, with the ability to download and play immediately. It's a multiplayer war game combined with a sustainable ecosystem that includes story modes, and features a live NFT marketplace for racers. The game offers battle mode, showroom, garage, and racer voting features.