I would really like to know more about what this is, but the app itself isn't very descriptive.

This looks like a living map of MMO OldSchool RuneScape. And since there is a cache drop down it probably is simulating many versions of a world.

OSRS is a game, and you use WASD controls to move around the map. If you know, you know.

> iOS isn’t supported.

Surprising, is it not just using leaflet or something similar for displaying the tiles? Or is it some 3d visualization?

It's 3d, doesn't look like any mapping library i know of

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…

No idea, just a black screen that says “iOS is not supported.”

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.

The NPCs that have their unique walking and standing animations seems to have been replicated too. See here: https://osrs.world/?cx=2956.96&cy=6&cz=3363.12&p=-151&y=2047... . OSRS wiki supports lookup by NPC IDs: https://oldschool.runescape.wiki/w/Special:Lookup?type=npc&i... . So that itself isn't too complicated.

I think the dataset they're using is https://archive.openrs2.org/ . It looks like NPC data might be a part of that. This version has the wrong NPC mappings, and also missing object data: https://osrs.world/?cx=3262.58&cy=8.22&cz=3265.93&p=-244&y=1...

Older Runescape 2 (pre-OSRS) caches have objects but no NPCs.

OSRS is old school runescape for anyone unfamiliar.

https://oldschool.runescape.com/

Does anyone know if old accounts would still work? From around 2000 ish.

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.