Old School RuneScape has reached the kind of problem only a long-lived MMO can really have. Jagex has added so much to the game over the years that the team is now close to running out of a basic technical resource: IDs used for models and scenery.
A Joke Found A Real Limit
The topic surfaced on the 2007scape subreddit, where a fake post was written as if it came from Mod Ash. The joke played on a familiar OSRS fear: that the old engine had finally hit its limit, and that the only cure for the messy code would be to erase the whole game and send everyone outside.
That could have stayed as a throwaway gag, but Jagex developer Mod Nin stepped in with a real note. According to Nin, the team is close to having no IDs left to assign to models and scenery. In their own words, Jagex needs to do work soon to stop the game from “exploding.”
Why IDs Matter
In simple terms, these IDs help the game know what things are. Lamps, stones, statues, scenery, and other objects all need their own entries. Community resources such as the OSRS Wiki and OSRSBox show thousands upon thousands of these identifiers, which makes the scale of the issue easier to picture.
This is not the first time Jagex has hit this wall. Nin said the same kind of issue appeared around May 2018. At that point, the available capacity was only doubled. Nin suggested the developer handling it may have been in a hurry, or may not have expected Old School RuneScape to keep running for so many more years.
Newer content shows why the pool is getting tight. Sailing, the first all-new skill added to OSRS since its return over a decade ago, brings fresh objects with fresh IDs. Items tied to Sailing, including the Camphor cargo hold, sit in the 60000 range. Another newer entry, November 2025’s Grimstone cave entrance, is listed as 60117.
The exact upper limit has not been officially laid out in the details shared here, but the number pattern points toward 64000 as a likely danger line. If that is correct, OSRS is now close enough that the issue can no longer be treated as some distant future problem.
The fix is not fully clear from the outside. Some players have joked that Jagex could simply double the available ID space again and push the concern further down the road. But if the game cannot assign IDs properly, the world and its surrounding tools may struggle to track where things are, what they are, or whether they can be placed at all.
Z-retro’s view: this is less a disaster story and more a neat reminder of what happens when an old online world keeps growing. Old School RuneScape’s age is part of its charm, but keeping that charm alive still takes careful, practical engine work.
