I am considering using Irrlicht engine. If I do end up using it, what would I have to do when I release the game?
Would I have to
a)give out the source code
b)put a copyright notice with the game and in the game
c)just put it in the code
d)none of the above
If none of the above, could I just release it without giving credit(I wouldn't do that, but I just want to know what my minimums are when it comes to giving credit when releasing the game).