Best REA game reverse-engineering cases

Reverse engineer anything with agents, from app behavior down to native binaries.

A Rust and Bevy clean-room port that loads assets from your own Steam install.

A multilingual, daily-updated ranking of cases built with REA.

Rebuilds the 1990s Breakout game's logic in C and checks it against the original x86 program with differential tests and byte-exact compiled output.

Nix packaging of REA with pinned npm integrity, Ghidra digests and offline loader tests, part of a personal NixOS configuration.

An agent analysed only the shipped Windows binary of an open-source puzzle game, wrote its findings, froze them, rebuilt the game as a web page and was graded against the real source (52 of 54 claims correct).

A C++20 clean-room reimplementation of the Refractor 2 engine behind Battlefield 2, an engine rather than a game; no game content is redistributed and there is no anti-cheat.

A Windows lab that pins tool versions, runs health checks and seeds small challenges so you can measure what REA and Ghidra actually give an agent.

A reverse-engineering experiment that rebuilds a 1990 MS-DOS minigame from scratch in Rust and SDL2.

Reconstructs a PC-98 DOS shooter's code, matching its 16-bit routines to readable C++ and the historical compiler's output.

An essay on rebuilding three Touhou games with agents: what verification looks like, where agents help, and how knowledge carries from one project to the next.

Highly recommend adding REA to Claude Code or Codex. The name stands for 𝗥𝗲𝘃𝗲𝗿𝘀𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗔𝗻𝘆𝘁𝗵𝗶𝗻𝗴. See a feature you like in another app? Have your agent take it apart to see how it's built, then 𝗯𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿 𝗼𝘄𝗻 𝘃𝗲𝗿𝘀𝗶𝗼𝗻 in your project. It's been #1 on GitHub's daily trending two days running and is past 60K stars.