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Rimworld was recently released on Steam Early Access. For those not aware, Rimworld is a bit like Dwarf Fortress but with a sci-fi twist. It's a game that tasks you with surviving on an alien planet after you crash land, building up a colony and eventually, if you so desire, escaping.

Ludeon Studios was selling a DRM-free version on their site for quite some time now prior to its arrival on Early Access. The studio decided to reward those who supported them directly by giving everyone a free Steam key. However, because people are jerks, a number of fraudulent purchases were made resulting in free Steam keys given and thousands of dollars worth of chargebacks. It is because of this that Ludeon Studios will no longer give out free Steam keys to those that purchase directly through their site.
If you bought before today, you can still get a key. However, I’ve been forced to stop offering Steam keys for those who buy today and in the future. We’ve been getting hammered by fraudsters who are obviously more experienced at this than I. Shutting it down for now is the only way to avoid thousands of dollars in chargeback fees and lost sales. It’s time to take a breather, because I can’t fight this ‘live’.

The game is, of course, for sale on Steam if you want a Steam copy. Buying from our site will give DRM-free copies as before, but no Steam key.

All the stolen keys are being cancelled, and should be deactivated before they can be sold (or soon after, depending on how fast Valve does it). The funds they were stolen with are being returned to their rightful owners. If you don’t want to get ripped off by fraudsters, be sure to buy direct from Steam.

Ludeon says that everyone that bought the game prior to July 17 will still get their Steam key if they want.