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Game · Strategy

Warzone 2100

Command the forces of The Project in a battle to rebuild the world.

  • Completely free
  • Windows and Linux
  • Open source
  • No account

Overview

Warzone 2100 is a real-time strategy game, available on Windows and Linux.

Gameplay elements described in its Flathub listing, in its GitHub repository and on its official website: story and narrative choices, single-player campaign, online multiplayer, cross-platform play.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Warzone 2100, released in 1999 and developed by Pumpkin Studios, was a ground-breaking and innovative 3D real-time strategy game.” — Winget, 10 November 2026
  • “Warzone 2100 is a free, open source, 3D real-time strategy game with a story-driven single-player campaign, online multi-player, offline skirmish, and more.” — GitHub, 10 November 2026
  • “Warzone 2100 is a free, open source, 3D real-time strategy game with a story-driven single-player campaign, online multi-player, offline skirmish, and more.” — GitHub, 10 November 2026
  • “Online multiplayer with up to 10 players, free-for-all or team-play, for massive battles” — GitHub, 10 November 2026
  • “Cross-platform multiplayer” — Flathub, 10 November 2026

At a glance

All of Warzone 2100 is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

The classic 3D real-time strategy game from 1999 has been updated, upgraded, and modernized for the very latest platforms! Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. Warzone 2100 offers a story-driven single-player campaign, online multi-player, and single-player skirmish modes. An extensive tech tree with over 400 different technologies, combined with the unit design system, allows for a wide variety of possible units and tactics. Highlights: Remastered single-player campaign with expanding persistent bases, away missions, and more Online multiplayer with up to 10 players, free-for-all or team-play, for massive battles Local skirmish with AI bots, for endless replayability Extensive tech tree with over 400 different technologies Customizable units with a flexible design system that enables a wide variety of possible tactics Cross-platform multiplayer Support for multiple graphics backends (OpenGL, OpenGL ES, Vulkan) 100% free and open source

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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