Nintendo 64 emulator just implemented rollback netcode for the entire library: ‘It was honestly not that hard’
The RMG-K fork of the RMG Nintendo 64 emulator received a significant update on May 14 that implements rollback netcode for the entire emulator library. Rollback netcode is a networking technology that allows online multiplayer games to feel responsive and smooth by predicting player actions and correcting when necessary, rather than waiting for confirmation of each action. This improvement addresses a long-standing challenge with online emulation: most emulated games feel noticeably sluggish during online play due to traditional netcode, particularly for games that require quick reflexes.
Developer CigNus, who created the RMG-K fork, noted that implementing the feature for the entire N64 library was surprisingly straightforward. While the update is currently limited to two-player games, this represents a major step forward for playing classic N64 titles online. Games like the original Super Smash Bros., known for its fast-paced competitive gameplay, should now provide a much more playable online experience compared to traditional emulation netplay.
The implementation of rollback netcode in N64 emulation is significant for game preservation and the retro gaming community. While other emulators have offered netplay functionality, they typically rely on older networking approaches that introduce noticeable latency and input lag. By bringing modern online technology to decades-old hardware through emulation, RMG-K enables players to experience these classic games online as if they were designed with modern connectivity in mind. The update demonstrates growing sophistication in emulation technology and the community’s commitment to preserving and improving access to classic gaming experiences.