Kharkov 43 has a mild DRM scheme based in activations. In a thread at Wargamer.com, some war gamers vowed to never buy Kharkov 43 or any future Tiller game because of this. Apparently the "boycott" didn't work very well. This was posted at John Tiller's page a few days ago:
Before this endeavor started last Friday, we had no idea what to expect. I had established a sales goal for the end of the month that I felt would represent undisputable success. I am delighted to report that because of your enthusiastic response, our first month sales goal was achieved Tuesday.
Our second game, a Squad Battles game, is finished and ready for release in the near future. And we have a very aggressive publishing schedule established for the first half of 2011 to populate the store with a variety of games from many different areas.
Thank you for ensuring that my team and I will be able to continue our efforts well into the future.John Tiller
08 Dec 2010
Tiller has sold a month's worth of games in 5 days. It doesn't surprise me at all. The games are great and the new download distribution venue is just too convenient. So here is to John Tiller for a continued success.
Side notes about Wargamer.com:
1) Wargamer.com news coverage team has either missed or ignored the release of Kharkov 43. I hope is just an omission. Even the most trivial previews of Matrix Games are being showcased with big fanfare (?!).
2) The thread at Wargamer.com about DRMs in Tiller's games is an embarrassment. These anti-DRM activists are convinced that taking a stance against a small guy like Tiller is as heroic as taking it against a corporation like Ubisoft or SEGA. Fortunately, they have absolutely no influence even in a market as small as this one.