What's the biggest title any developer has released direct (or "recent") to Gog without DRM?

Biggest in the sense of sales, size of the game or development budget? GOG don't really publish their sales numbers, and budgets are often relatively private too, unless it's a crowdfunded project. But I'd guess it's probably The Witcher 3 which is quite a big game in many senses.

From the recently released, Shadow Warrior 2 is also pretty big. I wouldn't call the above mentioned TToN a small game either.

Witcher 3, big AAA title about the adventures of a magical swordfighter who also gets laid. The twist is, the developer also happens to own GoG.