RS4 revealed at RuneFest 2026: new RuneScape MMO in Unreal Engine
Jagex unveiled a new RuneScape MMO at RuneFest 2026. The project, currently called RS4, is being built in Unreal Engine.
- The game is being built in Unreal Engine, is set in Gielinor, and does not yet have a final title, release date, or platform list.
- Early reports say the project is still in a very early stage of development and is likely several years away from release.
What happened
During RuneFest 2026, Jagex showed off a new MMO project set within the RuneScape franchise. Multiple outlets, including IGN, Polygon, and TheGamer, described the reveal as a fourth RuneScape MMO and used the working title RS4 or RuneScape 4. The announcement was part of a broader franchise presentation at the event.
On Jagex’s official teaser page, the company says the project is “an entirely new RuneScape MMORPG,” built in Unreal Engine and set in Gielinor. Jagex has not yet shared a final name, release date, or platform information. The studio is clearly positioning the project as a new chapter within the same franchise.
Initial reporting emphasizes that the game is still early in development. As a result, it is not yet known how RS4 will compare with RuneScape 3 and Old School RuneScape in terms of design or technology. Jagex has also not confirmed any gameplay details, business model, or support for specific platforms.
Timeline
2004: RuneScape 2 launches and becomes one of the franchise’s key modern versions.
2007: The version that Old School RuneScape would later be based on dates from this year.
2013: Old School RuneScape launches based on the 2007 version.
2026-10-03: Jagex reveals a new RuneScape MMO at RuneFest 2026, currently referred to as RS4.
2026-10-03: Jagex’s official teaser page describes the project as a completely new RuneScape MMORPG set in Gielinor.
2026: Multiple sources report that the game is being developed in Unreal Engine and is still years away from release.
Background
RuneScape has been around for more than 25 years and has several major branches. RuneScape 2 marked an important step for the franchise in 2004, while Old School RuneScape arrived in 2013 based on an older 2007 version. The new MMO now joins those titles as an additional project.
Current information suggests RS4 is a separate MMO set in the same world, not a direct replacement for the existing games. Jagex has not yet revealed details about the exact structure, monetization, or supported platforms. The name is also not final, since RS4 is being used as a working title rather than an official one.
Several outlets tie the reveal to a broader RuneFest roadmap. IGN says the announcement was part of a larger set of franchise plans, while Polygon and TheGamer highlight that the project is being built in Unreal Engine and remains in an early stage. Jagex’s official teaser page remains the main primary source for the confirmed baseline information.
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Sources
- IGN: "RuneScape 4 and Animated Adaptation Announced"
- Polygon: "RuneScape 4 Officially Revealed by Jagex"
- TheGamer: "RuneFest 2026 Reveals RuneScape 4 And Massive Franchise Roadmaps"
- MMORPG.com: "RuneScape 4, The Next MMO From Jagex, Announced At RuneFest This Weekend"
- Official Jagex teaser page: play.runescape.com/4