This is absolutely incredible. Someone would have had to know how to or experiment with rendering OSRS level data, but then they went a step further and replicated portions of UI, simulated some basic movement for the NPCs across all spaces, and mapped out their identifiers to link to the OSRS wiki.
Someone had been working on this for a while, and had a specific combination of technical skills and attention to detail to make this happen.
Old accounts will still work on the more modern Runescape, aka Runescape 3. But not on OSRS
To explain in more detail - OSRS was a 2013 re-release of a 2007 backup of the game, after community backlash against a series of unpopular changes. It has then evolved alongside the original game, with its own dev team.
To clarify even further, you can technically log into OSRS with old accounts, but none of your stats or gear from back in the day will be there. Everyone started fresh in OSRS when it (re)released in 2013.
Cool, I wasn’t sure what it was since I only have an iOS device available to me. My first guess was some leaflet map with tiles of the game map, but this sounds more interesting to me then.
It doesn't work on iOS? I was about to comment how impressed I was that it works (and pretty smoothly) on mobile—but I'm on Android over here. Wonder what's not supported in Safari…
Someone had been working on this for a while, and had a specific combination of technical skills and attention to detail to make this happen.