It's funny, I came in here expecting to see a couple of one-liners regarding grief and wrist pain. After the first page or two of responses, I thought it wasn't going to happen and was about to scroll to the bottom to add my own 2p until GMan's comments caught my eye. Good fun.

Anyways, on a more serious note, I agree with Icky. Adjusting one's chair height helps a lot. Find a height that allows you to extend your hand over your keyboard so that your elbows are at roughly 90 degrees. Also, if you don't already have one, find a keyboard with one of those wrist plates so that you can rest your hand at the same level as your KB rather than resting them on the desk and trying to curl your fingers over top of the KB.

One thing that has made vast improvements to comfortably playing games for me is to completely remap all KB controls. I never, ever use the standard WASD configuration. It's just too cramped. Instead, what I do is lay my (left) hand in a relaxed position over the keys in such a way that each finger lands on a key without me having to exert any control over where they happen to fall. In a sense, I literally "drop" my hand on the keyboard and wherever my fingers land, those will be the keys that I use as my "main actuation" keys, if you'll permit me to coin the phrase.

For me, numbering the fingers on my left hand 1-5 starting with the pinky, those keys happen to be:

• 1.) Left Shift
• 2.) S
• 3.) R
• 4.) G
• 5.) Space

I then map secondary actuation keys around those 5 main keys like anyone might for their WASD configuration.

The benefit of doing this, for me, has been a completely relaxed left hand and I have never experienced CT pain in my wrist as a result since. I can conceivably play for any number of hours and not feel the least bit of discomfort. It also has the benefit of opening up the keyboard so that I can easily access a wider range of keys than I could from the WSAD configuration. The only draw back is if I ask for help from people in-game, they will say, "Press the 'G' key to do such-and-such," referring to default key configurations. I then have to figure out what they mean by this and interpret it to my own key mapping scheme.

Hope this was helpful.