BTW, you can't ask too much from a free program, and it is about game recording, which is never an easy cake! Of course, there are always some freeware better than the others. CamStudio is not the number one, after all.

Check out Ezvid, Wink, Jing one by one. I personally like Wink and Jing very much.
This is a list of the best screen recoding freeware, which will give you more options. Good luck.
www.imelfin.com/best-free-screen-recording-software.html