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

See the topic. I didn't see where to download them after preorder and figured they would be available after release?
This question / problem has been solved by SlackerSupremeimage
Look for an email concerning your preorder (you preordered it from GoG, I'm assuming).
Have you actually paid for the game yet? Or have you only just pre-ordered it? Once you have paid for it, then you can choose the game out of the 5 available. If you have those 5 games, contact GOG and they will help you.You only can choose 1 free game as far as I am aware