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Armada 2525, rebuilt for the browser

QuadrupleX

A 3D space 4X. Explore, expand, exploit and exterminate against five rival AI empires.

  • Turn-based space 4X
  • Single player vs up to 5 AI empires
  • Desktop and phones, saves in your browser
  • Playable now

About the game

A remake of the DOS classic Armada 2525.

If you played 4X games on DOS, you might remember Armada 2525: a grid of sectors, rival empires and a lot of fleet management. QuadrupleX is a modern remake you can play in your browser, even on your phone.

The galaxy is a full 3D map under fog of war. Scout it, colonize planets, queue up structures and set each world to focus on industry, research or credits. Build fleets within your supply limit, mind the upkeep, and try not to go into debt.

Five rival AI empires share the galaxy, each with its own personality: Aggressive, Cautious, Expansionist, Technologist, Industrialist or Balanced. When fleets meet, you watch the battle replay round by round as they trade fire.

What's inside

Features

01

A 3D galaxy

Rendered with WebGPU (with a WebGL2 fallback), fog of war and scouting.

02

Planet management

Build queues, structures, and a focus on industry, research or credits.

03

Five rival AI empires

Each with a personality, tuned by a headless simulator that plays hundreds of AI-vs-AI turns.

04

Animated battles

Watch your fleets trade fire round by round in a battle replay.

05

Five research tracks

Plus fleet supply limits, upkeep, and debt if you overbuild.

06

No art files at all

Every ship, planet and star is generated in code.

Dev diary

From the blog

All QuadrupleX posts →
QuadrupleXOctober 19, 2026 · 1 min read Dev diary: remaking Armada 2525 as QuadrupleX 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.

Ready to play?

QuadrupleX is free and runs right in your browser.

Play QuadrupleX ↗