One of the biggest headaches when developing open-world games is how to store player-created content. For massive UGC projects like Minecraft, every player's constructions need to be properly preserved. But here's the problem—if we store all voxel coordinates on-chain, the Gas fees would make players cry. Hosting on centralized servers is another option, but then we worry about the game shutting down someday, and years of player effort vanishing into thin air. It's a dilemma.

Our solution is to use the Walrus protocol as the underlying storage for map data. It sounds quite technical, but the logic is actually simple—when players save their buildings, the client packages the voxel data into a binary file and uploads it directly to Walrus. Then, we just reference this Blob ID within an NFT object on Sui. What's the benefit? Walrus offers lightning-fast read speeds. When other players pass through that area, the game engine can fetch data from Walrus in real-time and instantly render the structures.

The economic model is also quite interesting. Players can choose to pay a one-time storage fee for their creations—for example, renting storage for five years at a ridiculously low cost—or have the DAO treasury cover the cost, allowing the in-game token economy to handle the payment. The advantage is that players truly own the "data sovereignty" of their creations. The key point is: even if the game company goes bankrupt someday, as long as the community remains and the Walrus protocol is operational, these building data can be accessed by new frontends or game engines, and even revived on other platforms. This is the real meaning of "perpetuity" in the metaverse—what you create always belongs to you.