It appears that The Witcher 2: Assassins of Kings will feature use SecuROM copy-protection for the game's retail version, which, as they say is the least intrusive way to protect its content from piracy. This was confirmed by CD Projekt during the CDP Days 2011 Spring Conference. They also stress that the game will allow for "unlimited installations on an unlimited number of computers" and allow "play on up to five computers at once." The game will require an Internet connection for its first activation (thanks, Shack).

Meanwhile, you'll also be able to grab a DRM-free version of the game, if you purchase via digital distribution platforms such as GOG.com. Here's the word on their offer:

The Witcher: Enhanced Edition Director’s Cut, the highly acclaimed RPG by CD Projekt RED, will come to GOG’s storefront with tons of exclusive free goodies on May 10th for a regular price of $9.99--but GOG.com is offering a special discount in commemoration of The Witcher 2 coming to GOG. The game will be available at a 50% discount from May 10 until May 24, and will cost only $4.99! The Witcher is an action RPG based on books by popular Polish fantasy author Andrzej Sapkowski. The player takes the role of Geralt of Rivia, the witcher (a professional monster slayer). The game received more than 100 awards including RPG of the Year from GamSpot, IGN, PC Gamer, and GameSpy. In short it’s a must have for all RPG fans.

Speaking of The Witcher franchise, starting from 10th of May all GOG.com users who want to buy the highly anticipated sequel to Geralt’s adventures, will have the opportunity to pre-purchase the game and pre-download almost all of it, so on May 17 when the game is released, they can play it almost instantly! Thanks to the brand new GOG.com downloader the pre-download will go fast and easy.

Pro Tip: The Witcher 2 preorder offer on GOG.com ends on the 16th of May at 23.59 Warsaw time, so anyone who wants to take advantage of the incredible preorder offer should make a point to visit www.gog.com/tw2 before then and snag their copy of the game. Also note that if you’ve preordered The Witcher 2 from GOG, you will have until the end of May to purchase the game and receive all of the preorder goodies, so don’t forget!