What was done
A native client rewrite rebuilds the Old School RuneScape renderer and cache pipeline, with Claude co-authoring tools that audit game varbit and location-transform behavior.
ToriRS is a native rewrite of the Old School RuneScape renderer and client. Its README describes a C client that can run on desktop, mobile, web and headless targets. The project’s content pipeline builds a cache from its OSRS-Content tree, and it documents offline boot and verification workflows.
Reverse-engineering work
The repository includes cache and content tooling, client scripts and game-state logic. Claude Sonnet 5 co-authored a location-transform varbit audit tool and changes that wire the uncovered gaps into the client. This is direct evidence of AI-assisted analysis of game-client behavior and data, alongside other AI-assisted content and client work.
The page describes this as a work in progress. The README’s sample commands use offline mode; the entry does not claim compatibility with official online services or include game credentials. The repository’s active build and platform guides list current limits and requirements.