MARBLEX has launched Season 2 of NFT Adventure, bringing The Seven Deadly Sins into a quest-based campaign connected to Immutable. The July 30 rollout combines free character NFTs, daily missions and blockchain rewards, with players required to link an Immutable Passport before beginning the adventure.
Immutable promoted the opening as a free mint tied to gameplay quests, while MARBLEX later said the initial allocation had sold out. The completed distribution moves new participants toward secondary-market access, although MARBLEX did not disclose the number of unique claimants or the speed at which the supply was taken.
The Seven Deadly Sins NFT Adventure is LIVE!
Your ticket to an iconic 55M+ selling anime universe, built for epic quests and real Web3 rewards on @MARBLEXofficial
And today’s main event…
The 7DS Free Mint is officially OPEN! Jump into the journey, clear the gameplay quests,…
— Immutable (@Immutable) July 30, 2026
Quest Progression Connects Character NFTs to Demon Marks
Players earn Hawk Points through check-ins, quizzes, social tasks and other daily missions. Those points can be used to summon and customize characters before converting them into NFTs and sending them through individual adventure stages. Completing the full route produces three ingredients that can be combined into a Demon Mark NFT.
Each character can complete a stage only once, limiting how often the same NFT can generate progression materials. The Demon Mark then acts as a gateway to a separate asset rather than directly producing token rewards. MARBLEX’s documentation lists Demon Meliodas, not the free Adventure collection, as the collection with a 4,500-NFT mint quantity.
At launch, MARBLEX allocated 3,000 Demon Meliodas NFTs to a swap pool requiring one Demon Mark plus 140 MBX. A separate claim pool offered 1,000 units for 180 MBX each. Finishing the adventure therefore provides access to a lower-cost acquisition route, rather than distributing the mining NFT automatically.
Demon Meliodas Opens a Capped MBX Mining Route
Demon Meliodas NFTs can be deposited into MARBLEX’s dedicated staking service. The company advertises a 300% APR, but each NFT has a finite mining allocation that reaches a maximum of 900 MBX at Level 2, meaning the structure does not provide unlimited token emissions. MARBLEX said the pool terms may change without prior notice.
The separation between the two collections is central to the campaign. Adventure NFTs support quest participation and the creation of Demon Marks, while Demon Meliodas serves as the staking asset connected to MBX rewards. Players must move through several distinct steps before reaching the token-mining stage, including gameplay, crafting and either swapping or claiming.
TokenTrove lists the official MBX 7DS collection within the Immutable ecosystem, providing a secondary-market venue after the free distribution. Secondary trading does not guarantee continued availability, stable pricing or profitable staking, and the value of the reward structure depends partly on MBX prices, upgrade costs and the amount already mined by each NFT.
The campaign extends MARBLEX’s attempt to connect entertainment properties with blockchain-based progression systems. Kodansha identifies The Seven Deadly Sins as Nakaba Suzuki’s completed manga series, while MARBLEX supplies the Web3 mechanics around its characters. Season 2 is now operational, but its longer-term performance will depend on sustained gameplay and demand beyond the initial mint.
