0 A.D.

This product is unreleased but remains under active development - information may change frequently and could be outdated or irrelevant.

0 A.D. is a free and open-source classical real-time strategy.

The game uses mod.io for mod distribution as of build alpha 23.^[1]

General information

Wildfire forums

Availability

Source	DRM	Notes	Keys	OS
Developer website		Source code is also available.

Game data

Configuration file(s) location

System	Location
Windows	%APPDATA%\0ad
macOS (OS X)
Linux	$XDG_CONFIG_HOME/0ad/

This game follows the XDG Base Directory Specification on Linux.

Save game data location

System	Location
Windows	%USERPROFILE%\Documents\My Games\0ad\
macOS (OS X)	$HOME/Library/Application\ Support/0ad/
Linux	$XDG_DATA_HOME/0ad/

Video

The game has an option to throttle the frame rate for both main menu and the gameplay for saving the CPU power.

In-game video settings

Graphics feature	State	WSGF	Notes
Widescreen resolution
Multi-monitor
Ultra-widescreen
4K Ultra HD
Field of view (FOV)		See Field of view (FOV).
Windowed		Toggle with `Alt`+`↵ Enter`.
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
60 FPS and 120+ FPS
High dynamic range display (HDR)

Field of view (FOV)

Create local.cfg^[2]
Go to the configuration file(s) location. Make a text file called `local.cfg` (if it does not exist already). Insert the line `view.fov = #`, where `#` is your FOV in degrees Save the file and boot up the game

General settings

Every option can be set in the text-file local.cfg. Just create local.cfg in the appropriate folder and insert the key=value pairs you want to set. For details where to place local.cfg, see Game data

Input

Keyboard and mouse	State	Notes
Remapping		See Remapping.
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support		Some settings available in `default.cfg`, usability unknown

Remapping

Add this (or just some parts) to local.cfg and edit the entries to suit your needs. Everything after a Semicolon (;) is a comment. A single action can be assigned to multiple keys by separating them with a comma.

Key combinations can be specified using this syntax: <Key1>+<Key2>+<Key3>

; > SYSTEM SETTINGS
hotkey.exit = "Alt+F4", "Ctrl+Break", "Super+Q" ; Exit to desktop
hotkey.leave = Escape                       ; End current game or Exit
hotkey.pause = Pause                        ; Pause/unpause game
hotkey.screenshot = F2                      ; Take PNG screenshot
hotkey.bigscreenshot = "Shift+F2"           ; Take large BMP screenshot
hotkey.togglefullscreen = "Alt+Return"      ; Toggle fullscreen/windowed mode
hotkey.screenshot.watermark = "Alt+K"       ; Toggle product/company watermark for official screenshots
hotkey.wireframe = "Alt+W"                  ; Toggle wireframe mode
hotkey.silhouettes = "Alt+S"                ; Toggle unit silhouettes
hotkey.showsky = "Alt+Z"                    ; Toggle sky

; > CAMERA SETTINGS
hotkey.camera.reset = "H"                                   ; Reset camera rotation to default.
hotkey.camera.follow = "F"                                  ; Follow the first unit in the selection
hotkey.camera.zoom.in = Plus, Equals, NumPlus               ; Zoom camera in (continuous control)
hotkey.camera.zoom.out = Minus, NumMinus                    ; Zoom camera out (continuous control)
hotkey.camera.zoom.wheel.in = WheelUp                       ; Zoom camera in (stepped control)
hotkey.camera.zoom.wheel.out = WheelDown                    ; Zoom camera out (stepped control)
hotkey.camera.rotate.up = "Ctrl+UpArrow", "Ctrl+W"          ; Rotate camera to look upwards
hotkey.camera.rotate.down = "Ctrl+DownArrow", "Ctrl+S"      ; Rotate camera to look downwards
hotkey.camera.rotate.cw = "Ctrl+LeftArrow", "Ctrl+A", Q     ; Rotate camera clockwise around terrain
hotkey.camera.rotate.ccw = "Ctrl+RightArrow", "Ctrl+D", E   ; Rotate camera anticlockwise around terrain
hotkey.camera.rotate.wheel.cw = "Shift+WheelUp", MouseX1    ; Rotate camera clockwise around terrain (stepped control)
hotkey.camera.rotate.wheel.ccw = "Shift+WheelDown", MouseX2 ; Rotate camera anticlockwise around terrain (stepped control)
hotkey.camera.pan = MouseMiddle, ForwardSlash               ; Enable scrolling by moving mouse
hotkey.camera.left = A, LeftArrow                           ; Scroll or rotate left
hotkey.camera.right = D, RightArrow                         ; Scroll or rotate right
hotkey.camera.up = W, UpArrow                               ; Scroll or rotate up/forwards
hotkey.camera.down = S, DownArrow                           ; Scroll or rotate down/backwards
hotkey.camera.scroll.speed.increase = "Ctrl+Shift+S"        ; Increase scroll speed
hotkey.camera.scroll.speed.decrease = "Ctrl+Alt+S"          ; Decrease scroll speed
hotkey.camera.rotate.speed.increase = "Ctrl+Shift+R"        ; Increase rotation speed
hotkey.camera.rotate.speed.decrease = "Ctrl+Alt+R"          ; Decrease rotation speed
hotkey.camera.zoom.speed.increase = "Ctrl+Shift+Z"          ; Increase zoom speed
hotkey.camera.zoom.speed.decrease = "Ctrl+Alt+Z"            ; Decrease zoom speed

; > CONSOLE SETTINGS
hotkey.console.toggle = BackQuote, F9       ; Open/close console

; > CLIPBOARD CONTROLS
hotkey.copy = "Ctrl+C"              ; Copy to clipboard
hotkey.paste = "Ctrl+V"             ; Paste from clipboard
hotkey.cut = "Ctrl+X"               ; Cut selected text and copy to the clipboard

; > ENTITY SELECTION
hotkey.selection.add = Shift                ; Add units to selection
hotkey.selection.milonly = Alt              ; Add only military units to selection
hotkey.selection.remove = Ctrl              ; Remove units from selection
hotkey.selection.idleworker = Period        ; Select next idle worker
hotkey.selection.idlewarrior = Comma        ; Select next idle warrior
hotkey.selection.offscreen = Alt            ; Include offscreen units in selection
hotkey.selection.group.select.0 = 0
hotkey.selection.group.save.0 = "Ctrl+0"
hotkey.selection.group.add.0 = "Shift+0"
hotkey.selection.group.select.1 = 1
hotkey.selection.group.save.1 = "Ctrl+1"
hotkey.selection.group.add.1 = "Shift+1"
hotkey.selection.group.select.2 = 2
hotkey.selection.group.save.2 = "Ctrl+2"
hotkey.selection.group.add.2 = "Shift+2"
hotkey.selection.group.select.3 = 3
hotkey.selection.group.save.3 = "Ctrl+3"
hotkey.selection.group.add.3 = "Shift+3"
hotkey.selection.group.select.4 = 4
hotkey.selection.group.save.4 = "Ctrl+4"
hotkey.selection.group.add.4 = "Shift+4"
hotkey.selection.group.select.5 = 5
hotkey.selection.group.save.5 = "Ctrl+5"
hotkey.selection.group.add.5 = "Shift+5"
hotkey.selection.group.select.6 = 6
hotkey.selection.group.save.6 = "Ctrl+6"
hotkey.selection.group.add.6 = "Shift+6"
hotkey.selection.group.select.7 = 7
hotkey.selection.group.save.7 = "Ctrl+7"
hotkey.selection.group.add.7 = "Shift+7"
hotkey.selection.group.select.8 = 8
hotkey.selection.group.save.8 = "Ctrl+8"
hotkey.selection.group.add.8 = "Shift+8"
hotkey.selection.group.select.9 = 9
hotkey.selection.group.save.9 = "Ctrl+9"
hotkey.selection.group.add.9 = "Shift+9"

; > SESSION CONTROLS
hotkey.session.kill = Delete                ; Destroy selected units
hotkey.session.attack = "Ctrl+Alt"          ; Modifier to force attack instead of another action
hotkey.session.garrison = Ctrl              ; Modifier to garrison when clicking on building
hotkey.session.attackmove = Ctrl            ; Modifier to attackmove when clicking on a point
hotkey.session.queue = Shift                ; Modifier to queue unit orders instead of replacing
hotkey.session.batchtrain = Shift           ; Modifier to train units in batches
hotkey.session.massbarter = Shift           ; Modifier to barter bunch of resources
hotkey.session.masstribute = Shift          ; Modifier to tribute bunch of resources
hotkey.session.unloadtype = Shift           ; Modifier to unload all units of type
hotkey.session.deselectgroup = Ctrl         ; Modifier to deselect units when clicking group icon, instead of selecting
hotkey.session.rotate.cw = RightBracket     ; Rotate building placement preview clockwise
hotkey.session.rotate.ccw = LeftBracket     ; Rotate building placement preview anticlockwise
hotkey.timewarp.fastforward = Space         ; If timewarp mode enabled, speed up the game
hotkey.timewarp.rewind = Backspace          ; If timewarp mode enabled, go back to earlier point in the game

; > UNIT TRAINING
hotkey.session.queueunit.1 = "Z"            ; add first unit type to queue
hotkey.session.queueunit.2 = "X"            ; add second unit type to queue
hotkey.session.queueunit.3 = "C"            ; add third unit type to queue
hotkey.session.queueunit.4 = "V"            ; add fourth unit type to queue
hotkey.session.queueunit.5 = "B"            ; add fivth unit type to queue
hotkey.session.queueunit.6 = "N"            ; add sixth unit type to queue
hotkey.session.queueunit.7 = "M"            ; add seventh unit type to queue

; > OVERLAY KEYS
hotkey.fps.toggle = "Alt+F"                  ; Toggle frame counter
hotkey.session.devcommands.toggle = "Alt+D"  ; Toggle developer commands panel
hotkey.session.gui.toggle = "Alt+G"          ; Toggle visibility of session GUI
hotkey.menu.toggle = "F10"                   ; Toggle in-game menu
hotkey.timeelapsedcounter.toggle = "F12"     ; Toggle time elapsed counter
hotkey.session.showstatusbars = Tab          ; Toggle display of status bars

; > HOTKEYS ONLY
hotkey.chat = Return                        ; Toggle chat window
hotkey.teamchat = "T"                       ; Toggle chat window in team chat mode

; > GUI TEXTBOX HOTKEYS
hotkey.text.delete.left = "Ctrl+Backspace"    ; Delete word to the left of cursor
hotkey.text.delete.right = "Ctrl+Del"         ; Delete word to the right of cursor
hotkey.text.move.left = "Ctrl+LeftArrow"      ; Move cursor to start of word to the left of cursor
hotkey.text.move.right = "Ctrl+RightArrow"    ; Move cursor to start of word to the right of cursor

; > PROFILER
hotkey.profile.toggle = "F11"               ; Enable/disable real-time profiler
hotkey.profile.save = "Shift+F11"           ; Save current profiler data to logs/profile.txt
hotkey.profile2.enable = "F11"              ; Enable HTTP/GPU modes for new profiler

; > QUICKSAVE
hotkey.quicksave = "Shift+F5"
hotkey.quickload = "Shift+F8"

Audio

In-game sound settings

Audio feature	State	Notes
Separate volume controls
Surround sound
Subtitles
Closed captions
Mute on focus lost
Royalty free audio

Localizations

Localization is done by the community via Transifex. An up-to-date page of all supported languages can be found here

Language	UI	Audio	Sub	Notes
English				Available in variants: US and UK
Asturian
Basque				Translated by 92%
Catalan				Translated by 87%
Czech				Translated by 96%
Dutch
Finnish
French
German
Greek				Translated by 94%
Hungarian				Translated by 92%
Indonesian
Italian
Polish				Translated by 96%
Brazilian Portuguese				Translated by 94%
Russian
Scottish Gaelic
Slovak				Translated by 93%
Spanish
Swedish
Turkish
Ukrainian				Translated by 91%

Network

An in-game account is required to join the Game Lobby.

Multiplayer types

Type	Native	Players	Notes
LAN play		8	This is based on the highest map limit in Alpha 23.
Online play		8	This is based on the highest map limit in Alpha 23.

Connection types

Type	Native	Notes
Matchmaking
Peer-to-peer
Dedicated
Self-hosting		An account is not required
Direct IP

Ports

Protocol	Port(s) and/or port range(s)
UDP	20595

Universal Plug and Play (UPnP) support status is unknown.

Other information

API

Executable	32-bit	64-bit	ARM	Notes
Windows
macOS (OS X)
Linux				^[3]

Middleware

	Middleware	Notes
Audio	OpenAL Soft
Interface	SDL2

System requirements

Alpha 25b: Yaunā ^[4]. Alpha 24 increased OS requirements^[5].

Windows
	Minimum
Operating system (OS)	7, 8, 8.1, 10
Processor (CPU)	3 GHz Intel or x86 compatible
System memory (RAM)	2 GB
Hard disk drive (HDD)	3.31 GB
Video card (GPU)	AMD Radeon 9000 Nvidia GeForce 3 128 MB of VRAM OpenGL 2.1 compatible
Other	1024x768 screen resolution

macOS (OS X)
	Minimum
Operating system (OS)	10.12 or later
Processor (CPU)	2006 or later Intel-based Mac ARM based with Rosetta
System memory (RAM)
Hard disk drive (HDD)	3.31 GB
Other	1024x768 screen resolution

Linux
	Minimum
Operating system (OS)
Processor (CPU)	2 GHz Intel or x86 compatible PowerPC64
System memory (RAM)	1 GB
Hard disk drive (HDD)	3.31 GB
Video card (GPU)	AMD Radeon 9000 Nvidia GeForce 3 128 MB of VRAM OpenGL 2.1 compatible
Other	1024x768 screen resolution

References

↑ New Release: 0 A.D Alpha 23 Ken Wood - Official Page - last accessed on May 2023
↑ PCGamingWiki Article for 0 A.D. - Wildfire Games Forums - last accessed on May 2023
↑ Debian -- Details of package 0ad in experimental - last accessed on 2021-05-08
↑ 0 A.D. - A free, open-source game of ancient warfare - last accessed on 2022-09-12
↑ New Release: 0 A.D. Alpha 24: Xšayāršā - last accessed on 2022-09-12
"New Requirements: Windows XP, Windows Vista, and anything below macOS 10.12 are no longer supported. The game also now requires SSE2. Furthermore, while ARM macs are supported, unfortunately the code running on them isn’t native yet, so users on this platform should expect a performance loss."

[1] New Release: 0 A.D Alpha 23 Ken Wood - Official Page - last accessed on May 2023

[2] PCGamingWiki Article for 0 A.D. - Wildfire Games Forums - last accessed on May 2023

[3] Debian -- Details of package 0ad in experimental - last accessed on 2021-05-08

[4] 0 A.D. - A free, open-source game of ancient warfare - last accessed on 2022-09-12

[5] New Release: 0 A.D. Alpha 24: Xšayāršā - last accessed on 2022-09-12
"New Requirements: Windows XP, Windows Vista, and anything below macOS 10.12 are no longer supported. The game also now requires SSE2. Furthermore, while ARM macs are supported, unfortunately the code running on them isn’t native yet, so users on this platform should expect a performance loss."

[1]

[2]

[3]

[4]

[5]

Developers

	Wildfire Games
Engines
	Pyrogenesis
Release dates
Windows	Early access
macOS (OS X)	Early access
Linux	Early access
Taxonomy
Monetization	Freeware
Modes	Singleplayer, Multiplayer
Pacing	Real-time
Perspectives	Bird's-eye view
Controls	Multiple select, Point and select
Genres	RTS
Themes	Classical