It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

HypersomniacLive: Changelog for Update / GOG-8 (Windoes) / GOG-7 (Linux and Mac) (added 25 July 2017):

- This update adds a pack of 3 levels to enhance the beginning of the game.
- All 3 levels happen on the Mothership and take place just before the game intro. We've put some details here and there that might help you reveal what Mothership and her spawns really are.

How to start the new level pack
- If you already own BUTCHER and have some progress going on, we recommend starting the campaign in another (temporary) save slot. Alternatively, you can just play the levels one-by-one from the level browser.
Windoes? :P