0 A D.
Cross-platform real-time strategy game of ancient warfare.
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Open the official tool or demo — no account needed.
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Run the open-source version on your own infrastructure.
What is 0 A D.?
0 A.D. is a free, open-source real-time strategy (RTS) game developed by Wildfire Games, an international volunteer team. It simulates ancient warfare across multiple historical eras, offering players strategic combat, resource management, and territorial expansion. The game is designed for both casual and competitive play, with a focus on moddability and community-driven development. It addresses the need for accessible, high-quality RTS experiences without paywalls, ads, or restrictive licensing. Gamers, history enthusiasts, and developers use 0 A.D. to explore historical battles, test game design concepts, or contribute to its open-source ecosystem. Its open licensing model ensures transparency and long-term accessibility, making it a unique alternative to commercial RTS titles.
How it works
0 A.D. is an open-source RTS game set in ancient history, developed by Wildfire Games. It allows players to command civilizations, build armies, and engage in large-scale battles across diverse historical settings. The game emphasizes historical accuracy and strategic depth, with mechanics rooted in resource management, military tactics, and territorial control. Its primary purpose is to provide a free, moddable platform for players to experience ancient warfare while fostering a collaborative development community. By using the GPL-2.0 license for code and CC-BY-SA 3.0 for art, it ensures users can redistribute, modify, and contribute to the project without proprietary restrictions. The game supports cross-platform play on Windows, Linux, and macOS, with source code available for advanced customization. It features a modding system, enabling players to create custom scenarios, units, and maps. Multiplayer functionality includes dedicated servers and bot-driven lobbies, while its open-source nature allows developers to analyze and improve its engine. Historical accuracy is enhanced by detailed unit mechanics and terrain systems, though it prioritizes gameplay over strict historical fidelity.
How to use it
- 1Open the 0 A D. page
- 2Use the tool directly in your browser
- 3Results appear instantly — no waiting, no downloads
What it can do
- Gaming
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/0ad
- license: GPL-2.0 — free to use
- privacy: Opens an external demo
Limitations
- Requires OpenGL 1.3-compatible hardware, limiting support for modern systems.
- Lacks modern online multiplayer features, relying on local servers and bots.
- Content depends on community mods, which may have inconsistent quality or updates.
- Learning curve for modding due to complex codebase and dependencies.
- Limited cross-platform support for older macOS versions (10.5 or later).
Understanding the result
Cross-platform real-time strategy game of ancient warfare.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by 0ad (MIT).
- Built with
- 0ad (https://github.com/0ad)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Text
- Output
- Output
Built with https://github.com/0ad. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- 0ad
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- /0ad — GitHub Repository
Upstream project · GitHub
- GPL-2.0 License
Upstream project
Frequently asked
What is 0 A.D. and what makes it different from other RTS games?
0 A.D. is a free, open-source RTS game focused on ancient warfare, developed by a volunteer team. It stands out through its moddability, open licensing, and historical themes. Unlike commercial games, it allows users to redistribute, modify, and contribute to its code and art. Its community-driven approach prioritizes long-term accessibility over proprietary monetization.
How does the game engine and modding system work?
The game uses a C++-based engine with the Pyrogenesis framework, enabling developers to create and integrate mods. Mods are stored as separate files, with tools like the 'lobby-bots' repository providing multiplayer functionality. The open-source nature allows players to inspect and improve core systems, though modding requires familiarity with scripting and the game's API.
How do I install and run 0 A.D. on Linux?
Download the Linux version from the official site, extract the files, and run the installer. Ensure your system meets the minimum requirements: 1 GHz processor, 512 MB RAM, and OpenGL 1.3 support. After installation, launch the game through its executable, and use the in-game options to adjust settings. For advanced users, compiling from source via GitHub may offer customization options.
How does 0 A.D. compare to games like Age of Empires or Civilization?
0 A.D. differs by using open-source code and moddable content, whereas Age of Empires and Civilization are proprietary with limited customization. It focuses on historical warfare with detailed unit mechanics, while Civilization emphasizes civilization management and turn-based strategy. 0 A.D. lacks modern online features but offers greater transparency and community involvement in development.
What should I do if a mod conflicts with an update?
Deactivate all mods before updating the game to prevent compatibility issues. If conflicts persist, check the mod's documentation for version requirements or contact the mod's developer. For troubleshooting, review the 'porting mod' guide on the official site, and use the GitHub repositories to find updated mod versions or patches.