I have several other UbiSoft games that use this very same DRM, but not Assassin's Creed 2. Here's what happens in those other games when I lose internet connectivity.
- The game inexplicably freezes with no error message.
- After several moments (I'd guess about 1 - 2 minutes) a message finally appears on the screen telling me that "UbiSoft's servers have become unreachable".
- After another few seconds, if you still can't contact UbiSoft's servers, the game drops you to your Windows desktop and all unsaved progress to that point is lost.
To be clear, it doesn't have to be YOUR internet connection that fails. It could also be a problem on UbiSoft's end, or anywhere in between. The game only cares about being able to contact UbiSoft's servers, it doesn't care whose fault it is.
To be fair, I've played A LOT of the latest Settlers game and only been kicked out maybe five times. However, much like with the early days of Steam, the first few days of actually owning Settlers 7 I couldn't play it at all, because UbiSoft's DRM servers were under heavy load and wouldn't authenticate my game.
I would not recommend buying a game with this type of DRM, and had I known the games I bought had this DRM, I would not have bought them. I will never buy a game with this type of DRM again.
According to sources I could find online, Crysis 2 uses SecuROM for disc checking, and uses TAGES Solidshield to enforce a 5 activation limit per serial number. It does not appear to use an always-on DRM scheme like Steam and Origin do.
The Steam edition removes the SecuRom, (as there is no disc) but keeps the TAGES DRM.
It seems like it's possible to "reclaim" some of the activations (ie, if you format and reinstall) if you're willing to get into contact with the publisher's customer support.
Best Answer
Great question!
Too much technical jargon? I'll explain it to you.
What is Denuvo?
Denuvo Anti-Tamper is a DRM solution that protects games from being placed in the hands of pirates (people who obtain video games illegitimately from cracking, reverse engineering, i.e.) This way, only people who bought it can play the game.
Keep in mind that Denuvo itself isn't a DRM.
What Does it Do? How Does it Work?
No one truly understands Denuvo besides the people who made it. The latest discovery on it (2016, you can read more about it here) does not provide enough information to crack the program completely.
According to this user on Steam, Denuvo works like this:
Because of this, Denuvo completes its two objectives:
So Why Is It Bad?
While Denuvo is an innovative approach to software encryption, there are a few drawbacks:
There's a lot of downsides and upsides to Denuvo, but now whenever you hear about it, you'll know what they're talking about!
Cheers!