Players connect to a peer-to-peer file sharing network service (Napster via opennap) and exploit a vulnerablity in a peer client to gain arbitrary file reads. A VPN is employed to facilitate game infrastructure.
There are multiple clients that can be used to connect to the network, including the original Napster 2.0b7 client. Players can discover the vulnerable client by joining the #chat chatroom.
The vulnerable client shares their client binary, which players are expected to reverse.
Once reversed, players should discover a path traversal vulnerability that allows attackers to exfiltrate any file on the client system (/flag).