While it is quite difficult to keep track of the all the 'Assassin's Creed' titles that are coming out this year, fans are still exicted about all the sneaking, climbing, about hiding they're planning to do.

Some time back, developer Ubisoft announced in its UbiBlog that the US release date for 'Assassin's Creed Rogue' remains unchanged; 'Rogue' will release on Nov. 11, 2014 for Xbox 360 and PS3.

However, 'Rogue' will release on Nov. 13, 2014 in EMEA territories.

'Assassin's Creed Unity' will also release on the same days, but will be available for the Xbox One, PS4, and PC.

Gamers looking forward to the new titles can recall that they've been delayed from their initial projected release dates by two weeks. Ubisoft stated that this was due to the fact that "along with big ambition - and even bigger promises - comes a lot of heavy lifting."

Senior Producer Vincent Pontbriand said, "This being a fully next-gen game, it requires a lot of work, a lot of production, and a lot of learning," adding, "It's always hard to be precise and to quantify exactly how much work is involved. So as we get close to the finish we often realize we're near the target but we're not quite there yet."

According to the blog post, as in the case of anyone making a triple-A game, the Ubisoft team also had to adjust to new technology. "At just a year old, the Xbox One and PlayStation 4 are in their infancy, and everyone is still learning how to get the most out of these magnificent machines," it read.

Pontbriand said, "We rebuilt most of the systems," going on to add, "Sometimes to improve the experience or sometimes to improve the gameplay itself, sometimes to reskin it, to make it look fresh all over again, or sometimes because we had to make everything online-compatible."

Talking about 'Assassin's Creed', Pontbriand reminds us, "AC is a huge open-world game. We have thousands of NPCs on screen. We have more depth in the types of AI we've built. The graphics are spectacular. The processes are way more complex. Which makes it exponentially harder to grasp everything than it was in the previous generation."