A years-old someday project, finally real. A 3D space 4X in the browser with five rival AI personalities, tuned by a simulator that plays them against each other for hundreds of turns.
If you played 4X games on DOS, you might remember Armada 2525: a grid of sectors, rival empires and a lot of fleet management. It was one of my favourites, and I've wanted a modern version for years. Now there is one, and it runs in your browser, even on your phone.
Explore, expand, exploit, exterminate
The galaxy is a full 3D map rendered with WebGPU (with a WebGL2 fallback for browsers that don't have it yet), under fog of war. You scout, you colonize, you queue up structures and set each planet to focus on industry, research or credits. Fleets cost upkeep and count against a supply limit, and if you overbuild, you go into debt.
When fleets meet, you get an animated battle replay and watch them trade fire round by round.
Five rivals with personalities
Up to five AI empires share the galaxy, and each gets a personality: Aggressive, Cautious, Expansionist, Technologist, Industrialist or Balanced. To tune them, I built a headless simulator that plays AI against AI for hundreds of turns.
No art files at all
Every ship, planet and star in QuadrupleX is generated in code. There isn't a single image or model file in the game.
Built with a pair programmer
I built QuadrupleX with Claude as my pair programmer, and the whole thing came together in a few days. It turned a "someday" project into a real one.
Play QuadrupleX free, and tell us which empire beat you first.
