HackerTube / Video
The Implementation of Rewind in Braid
GDC Festival of Gaming

Jonathan Blow's GDC talk explains how the time-rewind mechanic in Braid was designed and implemented, including the technical hurdles such as memory limits and state history. It covers both design and engineering concerns.
HN commenters cite it as the reference for how a rewind system works and as a point of comparison for undo and serialization approaches.
6 Hacker News mentions · 2018–2023