Quote: Original post by Ysaneya
These are "free" resources, ok, but are we allowed to use them ?
That's the whole point. I did (quick) checks on all the links to confirm that their licenses were actually compatible with the competition. Now, that's not to say that you should immediately assume you can download and use whatever you want. A lot of these things (the engines and libraries in particular) have a lot of conditions on their use, so you need to be aware of the different restrictions that different things have. So, they are all usable, but not necessarily without strings attached.
(I added Polycount to the links.)