If you for example obfuscate some routines used when loading a game, you might see a few seconds longer loading screens but that's about it. This has the potential to completely wreck the performance of any game if the devs don't do it correctly. We're talking hundreds or thousands sometimes even tens of thousands of times slower when compared to native x86 code. The interpreter that does this is also obfuscated resulting in sever dozen times larger code than needed and spread throughout your RAM rather than in a specific locationĪll of this together results in massively slower execution times for VM specific instructions. The instructions the VM produces still have to interpreted into normal x86 instrutions because your machine is emulating this VM This in itself increases the size of the code Regular old x86 code is compiled into some random VM specific code. However this comes at a huge cost, the VMs are only emulated by your CPU, this create a a huge amount of overhead. The virtual machine itself resides in your memory and its code is obfuscated by nnumerous different tricks coupled with tthe fact that the architecture of the VM is completley different from your machine, and will be entirely different for different instructions. So certain parts of the game don't actually call your CPU or GPU, they call the virtual machine.

During the decompressing and decryption phases, Denuvo goes through the games code and replaces bits and pieces of it with entirely different code that uses virtual machines that Denuvo creates. Now another major thing that Denuvo uses is virtualization. According to the wiki page Denuvo also needs access to Internet once every 24 hours as well as after any hardware changes. So when you boot up a game Denuvo contacts a server requesting a decryption key, once it has the key, contents are decrypted and you can start the game.

My question is what does this DRM do exactly?ĭenuvo itself has not revealed how the DRM works however people have formed a pretty good idea on what it possibly does.įirst of all Denuvo uses encryption and executable compression so basically the game files themselves are compressed and encrypted making viewing them much more difficult. The big issue is the internet problem, if you for whatever reason go to a place without internet for a couple of months/years, then you won't be able to play your games for a while.īut again, you never know now, Do you? After Doom, Inside, and all the cracks, well.

I recommend buying there's never the certainty that Denuvo will prevail for all games in a couple of months, mostly now after seeing Doom, Inside, and that other Cryteck game having it removed with a simple update, something that also brings me back to the whole argument of preservation, this was something that bothered me before, but seeing that apparently it is easy to implement Denuvo (see Anno from Ubisoft) as well as also being easy to remove Denuvo from your games (see the examples that I wrote before) and well that issue is not a concern for me. In reality my recommendation is to buy them (I know, kill me please) Really the problem with Denuvo more than anything is a problem of principle rather than convenience, at the very least for me, what pains me the most is the lack of ownership for actually being able to gain access to all the games I play at all times, paired with the fear of the lack of preservation that a lot of Denuvo games seem to have. Besides that there's also the rumor that it causes some performance issues, but for what i've heard, and read, this hasn't been tested. No the SSD rumor has been proven false, you can even read that information on wikipedia if you want. It limits modding to a degree, not completely, for what i've read. I've heard it also requires a 'periodic' online verification, but I can't confirm that. It requires an online verification when you download/redownload your games, when changing hardware, and when your games are updated.

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