First, please back up your Aion directories before you try anything. Nothing is ever guaranteed to work 100% of the time and it's always good to be able to undo. DO NOT try this unless you definitely have a 64bit operating system. If you do not know if you're running on 64 bit, then don't try this. These steps were originally provided by Quasimodo (thank you). Please use at your own risk.
Steps for NA NCWest version of Aion:
- Download Aion from NA NCsoft West as normal. The 64 bit client will now download correctly
- In the launcher, right-click on Aion, select properties and in command line parameters add:
-64
- Start Aion as usual & enjoy 64-bit client
Note: 64bit version no longer has devmode enabled and so typing -DEVMODE "con_disable_console = 0" after the -64 (with a space inbetween) will NOT give you FoV back
Steps for Gameforge version of Aion:
- Use the 64 bit client already in the Gameforge folder in bin64
- Create a batch file, which is really a notepad text file with the extension of .bat instead of .txt (helpful to edit it with .txt and then just change the extension). It should contain the following lines, although you may need to change the directory if Aion is in a different directory for you:
Spoiler
- Start Aion by double clicking on the batch file & enjoy the 64-bit client
Amazingly simple...
Reported bugs with the 64bit client have mainly been resolved with the most recent Korean client updates. Please report any bugs you find in the thread below. You may see occasional crashes due to slight incompatibilities between the korean and NA/EU version.
Instructions for undoing the 64bit client change:
If you are using the Gameforge client, then use their launcher and not the batch file. If you are using the NCWest client, then remove the -64 from your launcher parameters.
No files need to be removed or changed for either version of running the 64bit client.
Launching 64bit through Steam
Use at your own risk as it involves bypassing the launcher and renaming the bin program. It's possible you can be banned for renaming the file, although we've heard no reports of it happening yet.
- Rename aion.bin in the bin64 directory to aion.exe so that you can properly launch it directly as a non-steam game (steam only allows launching of .exe programs)
- Add aion.exe as a non-steam game
- Right click the added game and go to Properties. After the name of what to run (which is in quotes), you need to give it all the options (didn't have to use quotes) that it uses when it normally launches. You can find the options in the addcache.xml file inside your main aion directory. Mine says:
- Options for NA: -ip:64.25.35.103 -port:2106 -cc:1 -noauthgg -ls -charnamemenu -noweb -nowebshop -3DV
- Options for EU: -ip:79.110.83.80 -port:2106 -cc:2 -noauthgg -ls -charnamemenu -lang:enu
- Options for NA: -ip:64.25.35.103 -port:2106 -cc:1 -noauthgg -ls -charnamemenu -noweb -nowebshop -3DV
- Click play - Steam should load by the time you're at the character select screen. At least I know mine was loaded by that time.
This post has been edited by Nobody: 11 April 2012 - 08:11 PM
Reason for edit: updated with steam instructions

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