Game info
Overview
0 A.D. (pronounced “zero-ey-dee”) is a free, open-source, historical Real Time Strategy (RTS) game currently under development by Wildfire Games, a global group of volunteer game developers. As the leader of an ancient civilization, you must gather the resources you need to raise a military force and dominate your enemies.
History is Yours for the Taking

“0 A.D.” is a time period that never actually existed: In the usual calendar, one goes from 1 B.C. to 1 A.D. and skips zero. This reflects the historical fiction in the game: Who would have won if all the factions were pitted against each other when each of them was at its prime?
We intend to portray some of the major civilizations over the millennium of 500 B.C. to 500 A.D. (Hence the midpoint, zero.) That is an ambitious prospect, so in the first edition of 0 A.D. we focus on the last five centuries B.C. Perhaps in future expansion packs, more civilizations will be added, along with additional gameplay features.
We put a strong emphasis on historical accuracy while developing 0 A.D. We plan all our units and all our buildings based on reconstructions of how the units and the buildings might have looked like in the ancient world. We even name them in the original languages, such as Greek and Latin. But it’s worth remembering that any game should be fun to play, so, in many cases, we preferred playability over historical accuracy.
0 A.D. is Free of Charge

0 A.D. is completely downloadable at no cost and always will be. No “freemium” model, no in-game advertising, no catch. This is our iron-clad guarantee.
Although you might find some people selling copies of 0 A.D. on physical media, remember, you will always have the option to download 0 A.D. gratis on the internet, directly from the developers.
0 A.D. is Free as in “Freedom”

0 A.D. is freely licensed software, because we believe everyone should have access to great games, and that everyone can learn from developing them. You can redistribute and modify the game as long as you abide by the GPL. And you can even use parts of the art and sound for your own projects as long as you abide by CC BY-SA.
0 A.D. is Still Under Development

Work on 0 A.D. began in 2001, first as a mod concept for Age of Empires II: The Age of Kings. In 2003 development moved to a standalone game with its own engine, Pyrogenesis. In 2009-2010, the game was released as free, open-source software and and much of the codebase was rewritten. Learn more about the story of 0 A.D. »
Currently, 0 A.D. is still in alpha phase, which means an early experimental phase. It is playable, and you can already download and test the game, but some features are still missing. When will 0 A.D. be released? It is very hard to predict. Even after we are done implementing all the features, we will want to conduct extensive beta testing, which can take a while. Information about release dates will be released at the appropriate time.
Features
0 A.D. (pronounced “zero ey-dee”) is a free real-time strategy (RTS) game of ancient warfare. Lead a civilization set in the imaginary year of 0 A.D., develop a thriving city, raise a mighty army and contend with rivals for hegemony of the world. History is yours for the taking!
Check out some of the most exciting features in 0 A.D.:
Intense Gameplay
- Cross-platform: 0 A.D. is set to run on Windows, Linux and OS X.
- Unique civilizations: In 0 A.D. each civilization is unique in its appearance and gameplay, including units, structures, and technology trees.
- Citizen soldiers: Some infantry and cavalry units can not only fight, but also gather resources and construct buildings, making them substantially more versatile than in typical RTS games.
- Combat experience matters: The more time your citizen soldiers spend fighting your enemies, the higher they go up the ranks. With each rank, they become stronger, but they also get worse at civilian tasks.
- Technology tradeoffs: Some technologies are arranged in pairs, and within each pair, you can only research one technology at most in each game. This choice is irreversible, so choose carefully!
- Unit formations: Arrange your units in historical battle formations from the Phalanx to the Testudo and gain bonuses, such as increased armor. However, beware the costs that may come with them, such as lower speed! (As of August 2012, this feature has not been implemented yet.)
Realism and Authenticity
- Real world map realism: Random maps are based upon real geography of the ancient world with realistic plants, animals and terrain.
- Authentic historical details: Designs of units, buildings and technologies all reflect the hallmarks of each civilization. We even give them names in the original ancient Greek, Latin, Punic, Celtic, etc.
- Planned lifelike naval warfare: Ships will be on a much larger and more lifelike scale than seen in other games. They will move more realistically and even be able to ram other ships.
Make the game your own
- Translation and locale support: Play 0 A.D. in over a dozen languages.
- Powerful map editor: Draw landscapes with a palette of hundreds of terrains, build majestic cities and set the position of the sun in the Atlas Editor, your tool to design intricately detailed maps in 0 A.D.
- Excellent moddability: From new computer opponent behaviors to extra civilizations, easily create your own modifications (mods) of 0 A.D. by editing game files, all freely available in standard, open formats.
Factions
History and civilisation bonuses
Achaemenids
AchaemenidsThe Achaemenid Empire, also known as the first Persian Empire, was one of the greatest empires of antiquity, stretching at its zenith from the Indus …
Athenians
AtheniansThe Greek city-state of Athens is remembered as a famed center for the arts, learning, and philosophy, as well as one of the earliest forms of …
Britons
BritonsThe Britons were the Celtic tribes of the British Isles. Using chariots, longswordsmen and powerful melee soldiers, they staged fearsome revolts …
Carthaginians
CarthaginiansCarthage, a city-state in modern-day Tunisia, was a formidable force in the western Mediterranean, eventually taking over much of North Africa and …
Gauls
GaulsThe Gauls were the Celtic tribes of continental Europe. Dominated by a priestly class of Druids, they featured a sophisticated culture of advanced …
Germans
GermansThe largest migration in Europe of this period was that of the Cimbri people. The Cimbri were a large group of Germanic peoples originally from the …
Han
HanThe Han dynasty was the second imperial dynasty of China. Founded by the commoner Liu Bang, the empire lasted from 202 BC to AD 220 with a short break …
Iberians
IberiansThe Iberians were a people of mysterious origins and language, with a strong tradition of horsemanship and metalworking. A relatively peaceful …
Kushites
KushitesThe Kingdom of Kush was an African kingdom located at the confluences of the Blue Nile, White Nile, and River Atbara, in present-day Sudan. It rose …
Macedonians
MacedoniansMacedonia was an ancient Greek kingdom, centered in the northeastern part of the Greek peninsula. Under the leadership of Alexander the Great, …
Mauryas
MauryasFounded in 322 BC by Chandragupta Maurya, the Mauryan Empire was the first to rule most of the Indian subcontinent, and was one of the largest and …
Ptolemies
PtolemiesThe Ptolemaic dynasty was a Macedonian Greek royal family which ruled the Ptolemaic Empire in Egypt during the Hellenistic period. Their rule lasted …
Romans
RomansThe Romans controlled one of the largest empires of the ancient world, stretching at its peak from southern Scotland to the Sahara Desert, and …
Seleucids
SeleucidsThe Macedonian-Greek dynasty that ruled most of Alexander's former empire.
Spartans
SpartansSparta was a prominent city-state in Ancient Greece, and its dominant military power started in the 7th century BC. It peaked after the Peloponnesian …
Screenshots
All screenshotsTrailers
YouTubeAlpha 27 Agni trailer
Alpha 26 Zhuangzi trailer
Alpha 25 Yaunā trailer
Alpha 24 Xšayāršā trailer
Awards and acclaim
Selected Critical Acclaim for 0 A.D.:
“The landscape of PC gaming is littered with bright ideas and good intentions: both of those things seem true of 0 A.D.” – Jim Rossignol, Rock, Paper, Shotgun
“With a codebase of over 150k lines of C++ code plus 25k lines in development tools, this is looking like a fairly promising entrant into the open source RTS field. The screenshots are definitely pretty, to say the least.” – Slashdot
“Gorgeous graphics, with beautiful 3D rendering [… T]his is the first RTS I’m actually enthused about” – John Knight, Linux Journal
“One of the most fantastic games that is being developed right now in the open source community. […] It’s really showing that if you spend enough time, and if you spend enough energy and resources, you can really pull off a game that is 100% worth playing.” – InfinitelyGalactic Reviews
“[T]he most exciting game available for Linux. It still has a long way to go before being completed but I am confident that the game will, like some of ancient civilisations within it, grow into something special; A milestone sure to be noted in the history of Linux gaming.” – Georgi Karavasilev, OMG!Ubuntu!
“With its incredible art and intelligent gameplay, however, 0 A.D. stands poised to that an open-source project powered by volunteers can produce a modern, cross-platform game on par with the expensive Windows-only packages developed by commercial houses.” – Christopher Tozzi, The VAR Guy
Awards:
- Honorable Mention – IndieDB’s Players’ Choice: Best Upcoming Indie 2017
- Gaming On Linux : Favourite Open Source Game of the Year 2016
- Honorable Mention – IndieDB’s Players’ Choice: Best Upcoming Indie 2015
- Gaming On Linux : Favourite Open Source Game of the Year 2015
- Gaming On Linux : Open Source Game of the Year 2014
- Honorable Mention – IndieDB’s Players’ Choice: Best Upcoming Indie 2013
- Second Place – IndieDB’s Players’ Choice: Best Upcoming Indie 2012
- Project of the Month – SourceForge, June 2012
- Honorable Mention – IndieDB’s Players’ Choice: Best Upcoming Indie 2010
- Third Place – ModDB’s Indie Game of the Year 2009
- Nominee – ModDB’s Editor’s Choice: Best Upcoming Indie 2008







