DRIFTLIGHT: A Learning Lab for Reverse Engineering an Undocumented Game Protocol

The article introduces DRIFTLIGHT, a small UDP arena game built as a legal practice target for learning to reverse engineer undocumented game protocols. It provides stripped binaries, a recorded capture of 1,976 packets, and no documentation. The author walks through identifying a recurring magic number, a version byte, and an opcode field in a sample packet, and explains how the payload length and header size were worked out. Grouping packets by opcode and timing reveals much of the game's architecture before any payload is decoded. The first lab is offered free, while the full five-lab pack is available as an early-bird pre-order at $29 with automatic refunds if it does not ship.