Engineering a Persistent Web-Based MMORPG – Forgotten Runiverse

Marcel Stockli, Lead Engineer

Introduction

GameCoder partnered with Bisonic to undertake an ambitious project: developing a full-scale MMORPG based on the Forgotten Runes IP. Designed as a nostalgic pixel art experience accessible directly through a web browser, Forgotten Runiverse supports a massive player base and complex persistent systems without the friction of a traditional download. 

The Challenge

Building a Massively Multiplayer Online game is widely considered the “final boss” of game development. Doing so within the constraints of a web browser—while maintaining the depth of a traditional desktop MMO—presented a monumental technical hurdle.

• The Scale of Ambition: The goal was to support 10,000+ Concurrent Users (CCU) within a single, unified realm, avoiding the fragmented “sharding” common in older MMOs.
• Platform Constraints: As a web-based title, the game had to be highly optimized for memory management to prevent browser crashes while delivering a seamless, high-fidelity pixel art experience.
• The “Paris-Sized” World: Creating a continuous, massive landmass that feels alive and populated required a sophisticated streaming architecture.
• Dynamic Economy: A player-driven economy requires real-time monitoring and anti-inflationary measures to remain sustainable over years of live service.

Key Criteria

• Zero-Install Friction: The game must be instantly playable via a URL, supporting both desktop and mobile browsers.
• Scalable Infrastructure: The backend must dynamically spin up resources to handle massive player influxes during world events.
• Collaborative Pipeline: With a world this large, the level design and art teams needed to work in parallel without bottlenecking the engineering department.

The Solution

To meet these requirements, GameCoder Studios deployed a multi-disciplinary team of 50 experts (including 15 engineers and 10 pixel artists) over a 3-year development cycle.

1. The Rendering Engine (Modified Phaser 3)

While Phaser 3 was used as the foundation for its robust HTML5 capabilities, our engineering team heavily modified the core engine. These optimizations allowed for the rendering of thousands of on-screen entities, complex weather effects, and seamless tile-loading without frame drops.

2. Tech Stack

We built a “best-in-class” stack to balance performance with rapid scalability:

• Multiplayer Architecture: Utilized Colyseus for authoritative server-side logic, customized to support “Seamless Traveling” between world zones.
• State Management: Integrated React + Redux for the UI layer, allowing for complex menus (Inventory, Crafting, Skill Trees) to run natively alongside the game canvas.
• Database & Sync: MongoDB served as the primary data store, while Redis was utilized for high-speed event synchronization and real-time world state updates.
• Infrastructure: Initially deployed on AWS, we successfully migrated the entire architecture to OVH Cloud. This move provided granular control over bare-metal instances and significantly optimized operational costs.

3. World Building & Tooling

To manage a world the size of Paris, we developed a proprietary workflow:

• Tiled Integration: The world was segmented into 500×500 meter tiles, allowing level designers to work simultaneously on different sectors.
• Live Dashboard: We built a custom “God-View” dashboard for game designers, enabling them to adjust drop rates, NPC behaviors, and economic variables in real-time without requiring a server reboot.

Core Features & Gameplay Systems

The result is a fully featured MMORPG experience that rivals desktop titles:

• Living World: Farming, housing with deep decoration systems, and land management.
• Combat & Progression: Active real-time combat, 10 unique dungeons, and specialized class equipment.
• Social & Competitive: Quest systems, mounts, and a robust PVP system including ranked ladders and tournaments.

Results

After three years of intensive development, Forgotten Runiverse stands as a benchmark for web-based gaming:

Forgotten Runiverse successfully proved that with the right architectural approach, the web browser is a viable platform for the most ambitious and technically demanding genre in gaming.

A world that never sleeps needs a foundation that never fails. We built the scalable architecture behind the Forgotten Runiverse so your only concern is the legend, not latency. Let’s forge a persistent ecosystem.