From GTA V on iPhone to Free Photoshop: This AI Tool Is Upending Software

In brief

• REA, an open-source toolkit that connects AI coding agents to reverse-engineering tools like Ghidra, went from under 10,000 GitHub stars on October 6 to more than 100,000 by October 12.
• Claude Opus 5.5 has fueled a wave of AI-decompiled game mashups and ports, from Spider-Man swinging through Arkham City to an unofficial PC port of Fable 2.
• Developer Brandon Thomas released ArtCraft, free Rust-built Adobe alternatives made with Claude, but calls it a clean-room rebuild that never touches Adobe's code.

Would you like to kill a boss in Skyrim using an AK47 from Counter Strike? Give your NPCs a real genius-level brain that gives you unique answers instead of predefined strings of text? Would you like to run GTA V on your iPhone? What about using paid software for free, and legally? Well, people are doing that and more with AI right now.

A free tool that lets AI agents pull apart almost any piece of software has become the hottest project on GitHub, jumping from fewer than 10,000 stars on October 6 to more than 100,000 by Monday.

It’s called REA, short for Reverse Engineer Anything. Stars are GitHub’s version of a bookmark, and REA collected more than 30,000 of them on October 11 alone, after sitting mostly ignored since its creation in April.