So, I bought the game like 1 hour ago, when I spawned I saw the objects (houses, mountains, ...) glitching, they were flashing with like 20 different colors per second, if I was epileptic I would have had an epileptic attack by now.
Here are the images that prove what I'm saying:
http://cloud-3.steampowered.com/ugc/702857494043948269/FA1BF4EAD23BA14CFC556A23772E0EA266B865F8/
http://cloud-4.steampowered.com/ugc/702857494043946309/F546E151E7DC274862BDD3E59C056779D3B806AF/
http://cloud-3.steampowered.com/ugc/702857494043944467/28841DA23D24F6BDF64786D169EC417220468F8D/
(Sorry but I dont have the images in a file, they are on my steam page)