Yours: The Raider paingiver armor from Fallout 3? or the Paingiver Wristguards from World of Warcraft?

Mine: Thought of it during a roleplay in a warcraft 3 custom map.

Or maybe you will be in 13 years from now...

My nick has been in use for a few years now. I was stuck trying to come up with a less than doofy username for a long-defunct forum and I had just gotten into the old Golgo 13 movie (the anime one, not the one with Sonny Chiba) and it seemed to stick. After all, don't most action movie heroes have a steely gaze? :P

As for your own nick, I'm guessing you were an old-school Quake 2 deathmatcher and you knew where the BFG was in EVERY SINGLE MAP, turning them into blood drenched battlefields where no one could avoid the pain you gave out.

Ghouls'n Ghosts by Capcom.

Anjohl Tennan?

Great posts so far! Keep them coming! By the way i will give you a tip:

My nickname is from a game which certainly does not have any "Pain" at its title. So no "Painkiller".

gta IV: ballad of gay tony?

something to do with Fallout?

No. Not Fallout or GTA or WOW.

Manhunt?COD?Phantasmagoria?Planescape:Torment?

another clue plz?

ok I got it.

It has to be the Curse of Monkey Island.

I guess it is the name of the cannon. "Paingiver 2000"

Hmm... maybe it's not a video game.

How about Warhammer or Battle College?

From a fanmade Quake deathmatch map?

Edit: Forget this 2nd guess, I explained it more in my first post.

Definitely from Abe's series.