New levels, new achievements, new theme!

Hi guys,
an update that contains, among others, ten additional levels has just been released! I hope you enjoy! ːsteamhappyː

So, what exactly has changed?
- I've added ten additional levels with brand new winter theme! (well, cold can't hurt zombies)
- three new achievements, just so you could have some more fun, you perfectionists :)
- pause icon added to mouse menu so if you play using your mouse you won't have to press escape to return to the main menu


What's going to change in the future?
- a few minor fixes (those that were reported in community page, thank you for that by the way!)
- just a little of performance improvement
- and finally... LEVEL EDITOR! An editor that's a part of a game and it's directly connected to it - you will be able to play and rate levels made by community.
When? I'm pretty sure in April. :)

If you happen to occur any problem please report it in community page, thank you!

So, have fun and have a good day guys! Once again, I hope you'll enjoy! :)