Welcome to the cheats for Final Fantasy 11 for the PC. Below are the cheats.
Higher than 1024x1024 background rendering
Note: This procedure involves editing a registry value; do not attempt this if you are not familiar with working with your system registry, as a mistake can cause serious problems with Windows. Start Regedit and use the "Registry/Export Registry File" menu option to create a backup copy of your original registry. Use the following steps to set the background textures past a 1024x1024 resolution. In Regedit, Go to "HKEY_LOCAL_MACHINE", then select "Software". Select "PlayOnlineUS" and the "Square Enix" folder, then the "FinalFantasyXI" tab. You should see two "strings", "003" and "004". Double click to open them, and change the value for "003" to "800", then change the value for "004" to "800". You will notice the values to the right after you click "OK" will change to the corresponding resolution:
Alternate opening sounds
In order for this trick to work, you must be running the Playonline viewer in windowed mode. Open the viewer, and as soon as the window shows up, click outside of the window, which will un-highlight the viewer. Instead of the standard music, you should hear cheering, followed by "Welcome to Playonline".
Easy gil
This trick requires two characters. When starting a new character, you are always given an Adventurer's Coupon. When given to the correct person, you will obtain 50 gil. Make two characters and have the character that will be your main character be in his Mog house (preferably in order to get to the Delivery Box faster) and have the second character go to the Auction House in which ever country they are in and deliver their "Onion" weapon and Adventurer's Coupon to the main character. You can use the Adventurer's Coupon repeatedly. When the main character has received the items, delete the second character and make a new one with a new coupon and weapon. As for the weapon, put it up on the Auction House for about 100 to 200 gil. You can repeat the process as many times as desired.
Raise White Magic level easily
This trick is useful to level up much needed spells such as Protect, Cure, and Shell. Go to a local residential area and stand directly outside your Mog House. Cast the desired spell on yourself until you run out of MP. You can also cast it on other players running in and out of their Mog House. Once you have run out of MP, run into your Mog House, replenish it, exit, and repeat. This saves a large amount of time from having to heal after casting. You can level up magic by casting the spell on yourself, despite if you already have the enhancement on yourself or have 100% HP. Keep casting and it will level up.
Grass Cloth
Synthesis Yagudo Necklace with a Wind Crystal. This will get you three spools of Grass Thread. Synthesis them with Earth Crystal to get Grass Cloth.
