Work in progress.
This is a page for, (you guessed it), questions about installing Thrive. You might first want to check out How to download.
How do I open the file?
You must unzip it and then you'll get a folder. In this folder there should be one called "bin." In here there should be a file called "thrive." Double click on this and Thrive should start.
I open the file but it asks what to run it with?
You probably have a "rar" zip file. In that case, you must install winrar. Go to http://www.rarlab.com/rar/wrar521b2.exe and it should allow you to right click and extract.
It tells me some files were modified, if I want to move them to archive and the screen goes black when I choose a render to use.
You probably haven't unpacked the zip file. You need to make you extract the file first.
I hope we've solved your problem so you can enjoy the game. If not post your problem on our subreddit: http://www.reddit.com/r/thrive