Warzone 2100

A 100% free and open-source 3D real-time strategy game.

Why Warzone 2100 Rocks

Strategy by Design. Endless replayability.


Single-Player Campaign

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles.

LAN / Internet Multiplayer

Play versus your friends on a local network, or try your hand at online multiplayer with an integrated lobby.

AI Bots

Play versus AI bots in local skirmishes (or as added teammates / enemies in multiplayer), and practice your skills with endless replayability.

Extensive Tech Tree

Over 400 different technologies yield an extensive tech tree with many paths to choose.

Unit Designer

Customize your units with a flexible design system that allows for a wide variety of possible units and tactics.


Supporting Windows, macOS, Linux, FreeBSD and more - all with cross-platform multiplayer support!






Forum Posts


GitHub Stars





100% Open & Free

Open source, open development, open community - free as in freedom!

100% Open-Source

Exclusively open-source technologies, software, & tools. Community content is licensed under liberal licenses (ex. CC0).

image/svg+xml Approved License

100% Open Development

Join the public project on GitHub! Anyone can file bugs, contribute patches, and request enhancements.

100% Open Community

Chat on the forums, make & share add-ons, join online tournaments, and contribute to the Warzone 2100 experience. People around the world are waiting!

100% Free

Everything is free, including source code, downloads, and all features. No in-app purchases. No subscriptions. No ads. Just free.


A Long History

Developed in the 90s by Pumpkin Studios. Liberated in 2004.

Warzone 2100 was originally developed by Pumpkin Studios and published by Eidos Interactive. In 1999, it was released commercially for Microsoft Windows and Sony PlayStation. Pumpkin Studios ended their support for Warzone 2100 on January 5, 2000.

In 2004, after fan petition, Warzone's source code was released publicly under an open-source license. It has been developed, maintained, and improved by the community ever since, under the banner of the “Warzone 2100 Project”.

More Info

Frequently Asked Questions

Answers to common questions. Can't find the answer you're looking for? Check out the Forums and Webchat.