Crusader Kings II

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Crusader Kings II
Crusader Kings II Box.jpg
Release dates
February 14, 2012
May 24, 2012
January 14, 2013
Crusader Kings II at SteamDB
 Crusader Kings II at Wikipedia
Crusader Kings
Crusader Kings 2004
Crusader Kings II 2012

Key points

Disadvantage Performance can be poor in the later game due to the increased save game size and the increased number of calculations that have to be performed.
Disadvantage Many of the game's tutorials are broken and cause it to crash.

General information

More information Crusader Kings II Wiki
More information Steam Community Discussions


Source DRM Notes Keys Availability Table Icons - Steam.svg
GamersGate Availability Table Icons - Steam.svg DRM-free version is no longer updated or supported.[1]
Games Republic Availability Table Icons - Steam.svg
Green Man Gaming Availability Table Icons - Steam.svg
Humble Store Availability Table Icons - Steam.svg
Publisher website Availability Table Icons - Steam.svg
Steam Availability Table Icons - Steam.svg
Information All versions require Steam. The GamersGate DRM-free version is no longer being updated or supported.[1]
Information Steam version can be launched without Steam running.

Downloadable content (DLC) and expansions

Information This game has 45 separate cosmetic micro-transactions, these are comprised of unit packs, portraits, music, ebooks, dynasty shields, clothing and customisation tools (not listed below). Below is the major 'expansions' to the game. When an expansion is released a major patch is usually released offering some of the features to everyone (including bug fixes etc.)
Name Notes
Sword of Islam Now possible to play Muslim rulers. WindowsOS XLinux
Legacy of Rome Able to restore The Roman Empire, expanded Orthodox religion and employable retinues. WindowsOS XLinux
Sunset Invasion The Aztec Empire will invade across the Atlantic at mid to late game, unique culture and religion. WindowsOS XLinux
The Republic Can now play as Merchant Republic, able to build trade posts and compete in new Doge election system. WindowsOS XLinux
The Old Gods New bookmark set at the year 867. Now possible to play Pagan rulers and reform religion. Added raiding system for Pagan rulers. WindowsOS XLinux
Sons of Abraham Now possible to play Jewish rulers. Revised Christianity with College of Cardinals for Pope election. Pope has new powers and can now donate to Holy Orders. WindowsOS XLinux
Rajas of India Now possible to play as Indian rulers. Hinduism, Jainism and Buddhism as new religions with separate sects. Also adds a caste system. WindowsOS XLinux
Charlemagne New bookmark set at the year 769. Introduced tribal holdings that offer a new unique playstyle. WindowsOS XLinux
Way of Life Rulers are now able to select one of ten focuses for ruler granting stat boosts and new events and decisions. WindowsOS XLinux
Information When playing multiplayer expansions and some micro-transactions (ruler designer etc.) that the host owns are made available to all clients for that session.

Essential improvements[edit]

Information Note that any mods installed will use the settings.txt located in the mod subfolder, e.g. %USERPROFILE%\Documents\Paradox Interactive\Crusader Kings II\A Game of Thrones\

Notable mods[edit]

Game data[edit]

Configuration file and save game data location[edit]

Windows %USERPROFILE%\Documents\Paradox Interactive\Crusader Kings II
OS X %USERPROFILE%\Documents\Paradox Interactive\Crusader Kings II
Linux ~/.paradoxinteractive/Crusader Kings II/
Disadvantage This game does not support the XDG Base Directory Specification on Linux.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud Native support
GameSave Manager Native support

Video settings[edit]

Graphics option Option Notes
Widescreen resolution Native support
Multi-monitor No native support
Field of view (FOV) Not applicable
Windowed Native support See Windowed.
Borderless fullscreen windowed Native support See Borderless fullscreen windowed.
Anisotropic filtering (AF) Hackable See Anisotropic filtering (AF).
Anti-aliasing (AA) Native support Listed as 'Multisample Level' in game. Options are 0, 2, 4 and 8.
Vertical sync (Vsync) Native support
60 FPS Unknown
120+ FPS Unknown


Information Windowed option added in patch 2.1

Fix Manually edit fullscreen

  1. Open settings.txt in the game data folder
  2. Change fullScreen=yes to fullScreen=no

Borderless fullscreen windowed[edit]

Information Borderless fullscreen option added in patch 2.1

Fix Change native resolution and set windowed mode

  1. Open settings.txt in the game data folder
  2. Change fullScreen=yes to fullScreen=no

Now locate the line dictating resolution:

	x=[Desired x-axis resolution value]
	y=[Desired y-axis resolution value]
Set the values for x and y to your monitor resolution and the game will run in a borderless fullscreen windowed mode. Note some text-blurring may occur.

Anisotropic filtering (AF)[edit]

Fix Edit anisotropic_filtering

  1. Open settings.txt in the game data folder
  2. Go to anisotropic_filtering=0
  3. Change this value to any number greater than 0 and less than or equal to 16 for varying degrees of anisotropic filtering.
  4. This doesn't actually do anything. This was confirmed by an official Paradox Employee.

Input settings[edit]

Keyboard and mouse Native Notes
Remapping Not applicable
Mouse acceleration No native support
Mouse input in menus Native support
Mouse Y-axis inversion Not applicable
Controller support No native support
Touchscreen optimised No native support

Audio settings[edit]

Audio options Native Notes
Separate volume controls Native support Ambient sounds and music.
Surround sound Unknown
Subtitles Native support
Closed captions No native support
Mute on focus lost No native support


Multiplayer types

Type Native Notes
LAN play Native support
Online play Native support

Connection types

Type Native Notes
Matchmaking Unknown
Peer-to-peer Native support
Dedicated Unknown
Self-hosting Native support
Direct IP Native support

VR support[edit]

3D modes Native Notes
Native 3D Unknown
Nvidia 3D Vision Hackable See Helix Mod: CRUSADER KINGS 2.
TriDef 3D Unknown
iZ3D Unknown

Other information[edit]

Console commands[edit]

More information All the console commands can be found on the Crusader Kings II wiki. Only some of the debug commands are listed below. Discretion is advised when using the console as it is very easy to cheat with it (adding/removing traits etc.).

Press ~ (or the equivalent key above Tab on your keyboard) or Alt+Numpad 2+Numpad 1 in-game to enter console commands.

  • fullscreen - Toggles fullscreen
  • clear - Clears the console
  • debug_assert - Toggles asserts on/off
  • debug_bloom - Toggles bloom on/off
  • debug_borders - Toggles borders on/off
  • debug_citysprawl - Toggles city sprawl on/off
  • debug_dumpevents - Dumps event data to game log
  • debug_hires - Toggles terrain hires mode on/off
  • debug_info - Toggles debug info
  • debug_lines - Toggles debuglines
  • debug_nogui - Toggles GUI on/off
  • debug_nomouse - Toggles mouse scrollwheel on/off
  • debug_postfx - Toggles postFX on/off
  • debug_rivers - Toggles rivers on/off
  • debug_sky - Toggles sky on/off
  • debug_smooth - Toggles frame smoothing on/off
  • debug_terrain - Toggles terrain on/off
  • debug_textures - Dumps texture info to debug log
  • debug_tooltip - Toggles tooltips on/off
  • debug_trees - Toggles trees on/off
  • debug_water - Toggles water on/off
  • debug_wireframe - Toggles forced wireframe on/off
  • help - Print out all console commands or a specific command's description
  • observe - Switches to play no character at all
  • refresh_portraits - Refreshes all character portraits as soon as possible
  • reload filename - Reloads the gui or lua file
  • reloadinterface - Reloads the entire interface
  • reloadtexture texture-filename - Reloads the specified texture

Issues fixed[edit]

Activation code length[edit]

If your activation code is too short for the code input box upon installation, fill the additional spaces with the character 'X', e.g. for a code formatted as AAAAA-BBBBB-CCCC you would input it as AAAA-ABBB-BBCC-CCXX-XXXX-XXXX.

Graphics card stress/overheating[edit]

This is a likely cause of a game crash if your system only just meets the minimum system requirements to run the game. With such crashes, usually your graphics card will be at fault. One way to reduce stress on your graphics card is to turn off some of the more system-intensive options.

  1. Open settings.txt in the game data folder
  2. Change draw_trees=yes to draw_trees=no
  3. Change draw_rivers=yes to draw_rivers=no
  4. Change draw_postfx=yes to draw_postfx=no
  5. Change draw_sky=yes to draw_sky=no

This will prevent the game from rendering trees and thus significantly reduce the amount of information your graphics card has to process, in turn reducing the overall load on your system.[2]

Multiplayer incompatible versions[edit]

Your game version is given by "CK2 v<version> (<checksum>)" (for example, "CK2 v1.06 (YYEV)"). After enter a singleplayer or multiplayer game, it's possible for the checksum to change in some PCs (for example, to "CK2 v1.06 (ZYEV)"), while the others keep the same checksum. This won't allow you to play in multiplayer due to incompatible versions. Restarting the game fixes this problem.

Most mods also change the checksum, so you may not be able to join the host if you do not have exactly the same mods (including same version) as the host.

Alt-tabbing out and back in changes system resolution (Linux)[edit]

Since the introduction of the new launcher, alt-tabbing out of the game and back into it changes the system resolution and consequently makes the game unplayable. This can be prevented by bypassing the launcher via a terminal command. The command, in its simplest form, is:

   /path/to/ck2 -skiplauncher

Additional arguments are:

  • -mod=$MOD where $MOD is the filename of the mod you want to enable.
  • -exclude_dlx=$DLC where $DLC is the filename of the piece of DLC you want to disable.

A third-party free software launcher is available that does these things for you.

System requirements[edit]

Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Pentium IV 2.4 GHz or AMD 3500+
System memory (RAM) 2 GB
Hard disk drive (HDD) 2 GB
Video card (GPU) NVIDIA GeForce 8800 or ATI Radeon X1900
512 MB of VRAM
Operating system (OS) 10.6.8
Processor (CPU) Intel Core Duo 2GHz
System memory (RAM) 2 GB
Hard disk drive (HDD) 2 GB
Video card (GPU) ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600
Operating system (OS) Ubuntu 12.04 LTS
Processor (CPU) Intel Pentium IV 2.4 GHz or AMD 3500+
System memory (RAM) 2 GB
Hard disk drive (HDD) 2 GB
Video card (GPU) ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600
1 GB of VRAM


  1. 1.0 1.1 Crusader Kings II - Steam and GG Versions - The Future