When it comes to the randomness system in games, everyone knows—blind box surprises, dungeon loot drops, arena wins and losses—all depend on it. But once you enter the world of blockchain games, this setup changes its flavor. Players are always pondering: Is this randomness truly random? Are project teams manipulating behind the scenes? In simple terms, the "fairness crisis" of blockchain games stems from this very issue.

This problem may seem minor, but it actually determines whether blockchain games can truly shake off traditional gaming. As both a player and a developer, I know this all too well—if the trust system collapses, the industry has no future. Only after delving into a new solution did I realize what it means to fundamentally change the rules of the game.

The core idea isn't complicated: don't let game developers have the final say behind the scenes; instead, transfer the power of randomness generation to the entire on-chain community, where everyone can see and verify. It sounds simple, but the real challenge is—how to ensure the randomness is sufficiently unpredictable, unmanipulable, and unguessable, while also being fast, cheap, and not holding things up?

The answer is a combination of techniques. First, discard easily hackable methods like block timestamps or hash values. Instead, embed a "random number generator" at the network layer. Its operation is as follows: every so often (around each block), a random group of verifiers is selected from the entire network, and they each generate a secret digital fragment. These fragments are then aggregated and combined on-chain to produce the final random seed. The entire process is fully transparent; no single participant can know the result in advance or alter the numbers. In this way, fairness shifts from mere promises to verifiable facts.