A starter kit for creating your own online browser game, allowing you to launch it in a single weekend instead of spending months developing an engine and all the tedious basics. Your task is simply to add more features.
Last year, I was completely bored and depressed from building yet another business app, so I decided to build online games occasionally to balance things out.
For six months, I built a demo of an MMORPG(read dev-log), and during that time, I solved many of the more difficult problems and added basic mechanics:
- login/registration via nickname and password - chat - character movement with pathfinding - moving items - basic combat system - basic skill progression system - two monsters with simple AI - map tiles with various effects on movement speed - terrain elements and obstacles like trees and rocks - map editor
Thanks to LaunchMMO, you can develop your MMO without spending hundreds of hours building the engine and all the difficult stuff. You can also slightly modify the server and build another online game (just like I'm currently doing when building a new game).
I built the server in Java + Spring Webflux with Netty, as it's a very stable ecosystem with a lot of tools.
The browser client is React + Phaser.
When writing the server code, I used design patterns and hexagonal architecture, thanks to which the logic layer is 100% separated from the network layer, so you can easily add raw TCP for, for example, a desktop client.
I'm curious what you think about it.
Best regards!
About LaunchMMO on Product Hunt
“Launch your browser MMO this weekend, not months”
LaunchMMO launched on Product Hunt on August 29th, 2025 and earned 107 upvotes and 1 comments, placing #15 on the daily leaderboard. A starter kit for creating your own online browser game, allowing you to launch it in a single weekend instead of spending months developing an engine and all the tedious basics. Your task is simply to add more features.
On the analytics side, LaunchMMO competes within Productivity, Indie Games and Developer Tools — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how LaunchMMO performed against the three products that launched closest to it on the same day.
Who hunted LaunchMMO?
LaunchMMO was hunted by Michał Kmiecik. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of LaunchMMO including community comment highlights and product details, visit the product overview.
Michał Kmiecik
Hi everyone! 👊
I'm Michal, full-stack dev since 2016, still 9-7.
Last year, I was completely bored and depressed from building yet another business app, so I decided to build online games occasionally to balance things out.
For six months, I built a demo of an MMORPG(read dev-log), and during that time, I solved many of the more difficult problems and added basic mechanics:
- login/registration via nickname and password
- chat
- character movement with pathfinding
- moving items
- basic combat system
- basic skill progression system
- two monsters with simple AI
- map tiles with various effects on movement speed
- terrain elements and obstacles like trees and rocks
- map editor
Thanks to LaunchMMO, you can develop your MMO without spending hundreds of hours building the engine and all the difficult stuff. You can also slightly modify the server and build another online game (just like I'm currently doing when building a new game).
I built the server in Java + Spring Webflux with Netty, as it's a very stable ecosystem with a lot of tools.
The browser client is React + Phaser.
When writing the server code, I used design patterns and hexagonal architecture, thanks to which the logic layer is 100% separated from the network layer, so you can easily add raw TCP for, for example, a desktop client.
I'm curious what you think about it.
Best regards!