Jagex: The RuneScape Company Tech Stack

Live MMO operator scaling player retention and fraud detection across 300M+ accounts

Computer Games Cambridge, Cambridgeshire 201–500 employees Privately Held

Jagex runs two flagship MMOs with a 25-year history and 300M+ cumulative player accounts. The tech stack—Unreal Engine 5, AWS, C++, Java, Spring Boot, SQL, Python—reflects a dual-track operation: game engine and backend services infrastructure. Hiring velocity is accelerating, with engineering and design dominating open roles; concurrently, the project list reveals heavy investment in analytics (cohort modeling, LTV/churn prediction, media mix modeling) and detection infrastructure, signaling a shift toward data-driven retention and fraud response as core operational capability.

Tech Stack 56 technologies

Core StackAWS Linux Google Analytics Adobe Photoshop C++ C# Python Tableau Power BI Figma Adobe Illustrator After Effects React Power Query Java JavaScript TypeScript Terraform macOS Windows Unreal Engine 5 Unreal Engine Perforce SQL R Excel Framer Photoshop Spring Boot Git+26 more

What Jagex: The RuneScape Company Is Building

◆Challenges

Player churn
Scaling detection and response capability
Timely operational execution
Campaign decision-making
Testing methodology optimisation
Retention challenges
Gdpr compliance
Scalable marketing technology stack
Data governance and privacy
Improving detection and response processes

▲Active Projects

Runescape: dragonwilds
Excel-based cohort model for churn dynamics
Building detection infrastructure
Technical & data portfolio view
Forecasting models
Media mix modelling
Player experience across websites, account flows, and game launcher
Design systems and component libraries
Ltv and churn prediction
Automation of model inputs via sql/power query

Hiring Activity

Accelerating40 roles · 20 in 30d

Department

Engineering

Design

Marketing

Finance

Data

Product

Security

Seniority

Senior

Mid

Lead

Director

Manager

Junior

Company intelligence

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About Jagex: The RuneScape Company

Jagex develops and operates RuneScape and Old School RuneScape, two long-running MMOs that have collectively welcomed over 300 million player accounts and generated $1 billion in lifetime franchise revenue. The company is based in Cambridge, UK, with over 400 employees. Beyond core game operations, the RuneScape franchise now spans merchandise, live events, and external content experiences. Both titles run on PC and mobile with continuous evolution driven by community feedback. A third title, RuneScape: Dragonwilds, represents recent expansion into the portfolio.

HeadquartersCambridge, Cambridgeshire

Company Size201–500 employees

Hiring MarketsUnited Kingdom

Frequently Asked Questions

What tech stack does Jagex use?

Jagex develops on Unreal Engine 5 and Unreal Engine, with backend services built in C++, Java, Spring Boot, and Python. Infrastructure runs on AWS, with data processing via SQL and R. Creative and pipeline tools include Perforce, Figma, Adobe Creative Suite. Analytics uses Tableau and Power BI.

What is Jagex working on?

Active projects include RuneScape: Dragonwilds, detection and fraud infrastructure, player churn and LTV prediction models, media mix modeling, cohort analysis, and a technical portfolio view. Design systems and component libraries, plus improvements to player experience across web, account flows, and the game launcher, are also underway.