Donkey Dong
The Pink Box
Sins of a Solar Empire (you don’t actually need to change the title on that one, just change the sins…)
Cum and Conquer
I’ve seen “World of Porncraft” and “World of Sexcraft” used - there’s an impressive amount of WoW based porn out there. I like yours better though, it has the right initials.
It was an actual porn site as well 
They were forced to change the name though, it’s now called Whorelore.
Pron (Ok technically a movie about video games.
Zelda: Twinks Awakening
Zelda: A Twink To The Past
Zelda: 4 Pink Swords Adventure
Taints Row
Dragon Gape: Orgasms
Left 4 Head
Call of Booty
XXX-Cum
Little Big Assventure
Double Dragon - Double Anal
Street Walker
Sexwarrior III, with the Pirate’s Moon expansion.
Final Fantasy XXX
Baldur’s Gape
Baldur’s Gape II: Shadows of Ass
Baldur’s Gape: Dick Alliance
Cuntra
Super Cuntra
Cuntra: Legacy of Whore
Cuntra Force
Cuntra: Hard Core
Cuntra: Shattered Hymen
Cuntra: Re: Girth
Tom Clancy’s Sphincter Sell
Porn Star Wars: Nights of the Old Pubic
The Elder Scrotums
Halo: Reacharound
Ass Effect
Donkey Punch-Out
Mario Sex Party
Poke-a-man: Black and Blue
Heavenly Sword Swallowers
Metal Slut
Interstate '69
Red Bed Erection
Assteroids
Womb Raider
The way we used to do it would be to post a straight title, and let the next person corrupt it.
So…
Duke Nukem.
Whortal
Dyke Lick’em
Prince of Persia: The Sands of Time.
Priss of Please’ya: The Sucks of Tim.
The Prince of Purrsia: The Furries of Time