I don't understand how this is relevant for an adventure, that's all. That's why I asked it here.
OK let's assume you are one of those people who NEVER replays an adventure game a few years later -- either because you have an incredible memory and can remember everything in a game you played 5+ years ago, or because you refuse to play games with graphics that look 5+ years old, or because for whatever reason you refuse to play "older" games or games you have played before. So you have no use for backing up a game to reinstall and replay a few years down the road without needing to "phone home" to some server that no longer exists to activate it.
Let's assume you've never had a virus -- nor had a hard drive fail while playing a game, or other computer problems that necessitated a new install on a different computer or a freshly formatted hard drive.
Let's assume you have a lightning fast internet connection that never stalls out during a download or produces a corrupt download, so you never use up your 3 allotted downloads.
Let's assume you've always
received the emails that contain activation codes promptly and without having to email to request them several times.
Let's assume you've never had problems activating, or if you did, you heard back from support immediately and the problem was cleared up in less than a day.
Let's assume you never had a conflict between your game and something else on your system -- like an antivirus or anti-malware program that deleted your game exe or firewall that blocked your activation.
If all these are the case, and you've never had to deal with this sort of aggravation, then maybe "DRM-free" is nothing for you personally to be excited about. But for those who've had difficulties with DRM, or who object to it on principle, or who have the foresight to see the problems it could cause down the road, "DRM-free" is great news.
It's not just a matter of "owning" the games you buy and being able to replay them whenever you want on any system you want, even if it's a few years after you bought them. It's often a matter of being able to play them at all -- even once:
Check the problems with DRM and support that people have had with "Corrosion -- Cold Winter" in ***this thread***
Someone from the company sent in some tech support suggestions -- but because of the restrictive DRM and limits on downloads and activations, the suggestions won't work.
Hopefully now you can see why some adventure gamers are excited when a game like this from a famous developer is released with no DRM.