I built an indie, browser-based MMORPG

In plain words

This is a browser-based MMORPG currently in alpha development by a solo developer. It uses Blender for 3D asset creation, GLTF for asset export, and JSON for object configuration. The game runs on a Node.js server using Express and Socket.io to handle multiplayer game state and player interactions. It is designed for players interested in experiencing a multiplayer online role-playing game built with open-source technologies in a web browser.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

I've been working on an MMORPG that is now in alpha as a solo developer. Here are the major open source technologies that I use: Blender - 3D modeling software for creating the overall environment and every game object. I've gotten a lot of CC and Public Domain assets from https://poly.pizza GLTF - I export…

• 
  I'm open-sourcing my game engine2023 · github.com · ▲318

  Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io

• 
  I've been making JavaScript sandbox alone for 6 years2022 · playcode.io · ▲397

  Hi HN! Thanks for your attention to my post. It was a big challenge to run most of Node.js packages in browser, fast moreover. Virtual File system, resolve import/export. I got cold many times, depressions, burned out, yet still alive and finished it. Many guys helped me with an advice. Many users give a lot of positive feedback. There are 200,000 monthly unique users. I work full time now because of the freemium business model. To be honest - I am happy after many years of hard work.

• 
  I built a multiplayer voxel browser game engine2023 · kevzettler.com · ▲236

  I open sourced my HTML5 multiplayer 3D voxel browser game engine.

• 
  A Marble Madness-inspired WebGL game we built for Netlify2024 · 5-million-devs.netlify.com · ▲616

  Hello HN! We’re a small creative studio specializing in real-time 3D experiences. Netlify approached us to design and build an interactive experience to celebrate reaching 5 million developers. Inspired by the classic game Marble Madness, we created a gamified experience where users control a ball through playful, interactive levels. The goal was to blend marketing content with the look and feel of a game to engage users. The app is built with Three.js [1], using our custom render pipeline and shaders, and uses Rapier for physics simulation [2]. The 2D content is overlaid on the WebGL view…

• IM
  I'm writing an MMORPG game for learning programming2022 · bytelegend.com · ▲229

  Hi, I've been developing an HTML5 MMORPG game where people can submit code to play a game, like collect items, destroy defense towers or kill monsters, etc.. I've been working on this for over 1.5 yrs (all my spare time) and now it's ready for preview, does anyone want to try it out? It's mostly opensource (and the rest will be opensource sooner or later) Please access it with PC, it's an HTML5 game: https://bytelegend.com/ I really want it to expand to more languages, but right now I've only finished Java part. I wonder if anyone can help me with other languages. Besides, I'm…

• IM
  I made a browser-based RTS game2022 · battle-of-flags.com · ▲212

  I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…

• 
  /dev/null▲482

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Pygma▲1,412

  AI copilot for Instagram

  AI · 2024 · pygma.me

• 
  Cello▲1,347

  Easiest way to add a referral program to your SaaS

  Growth · 2024 · cello.so

• 
  La Growth Machine▲1,216

  Create personalized, multi-channel conversations at scale

  AI · 2024 · lagrowthmachine.com

• 
  Superhuman 2.0▲1,142

  Revolutionary AI email, reimagined for teams

  AI · 2024 · superhuman.com

• 
  FlowMapp 3.0▲1,142

  Visual website planning in the most powerful way

  Work · 2024 · flowmapp.com

• 
  PyjamaHR▲1,132

  Hiring on autopilot. The AI applicant tracking system (ATS).

  Work · 2024 · pyjamahr.com