In brief: It's been an amazing few years for CD Projekt. The Polish company, parent of The Witcher 3 developer CD Projekt Red, has experienced massive growth in recent times, and now holds the distinction of being the second most valuable gaming company in Europe with an $8 billion market valuation.

As noted by Reddit users, the firm's valuation has jumped around $1.2 billion in a month. That puts the company behind one other European game studio: France's Ubisoft, which is valued at $9.52 billion.

CD Projekt, which counts GOG among its subsidiaries, will owe a lot of its current valuation to CD Projekt Red. The Witcher 3 remains one of the best titles ever made, and its popularity received a huge boost when Netflix's TV show arrived. The game's average number of players for January hit over 48,000---the second-highest it's been since the 51,000 average at launch in May 2015. The peak player count, meanwhile, passed 100,000 for the first time last month.

The Witcher 3 has made over $50 million on Steam, which means CD Projekt Red is now getting 80 percent of any subsequent sales on the platform---Valve's cut is based on the number of game sales. The RPG has also arrived on the Nintendo Switch, where it boasts upgraded graphics and support for cross-saving with the PC version.

The other big earner for CD Projekt is, of course, Cyberpunk 2077. There was disappointment when it was pushed back to September, but pre-sales on multiple platforms and the hype surrounding its release will have helped increase the company's valuation.