..what library's are needed..

[Naughty Alien]

..after pathfind library and animation library, im planing to push out very easy to use controller library..but after that, im wondering what else would be required most?? Reason for listed 3 libs is because most of requests i have received and questions on forum, are related to this 3 libs, so i would like to know, what would be most required lib after this 3 ??

[Flexman]

Tweening? I only mention it as it's something I found useful beyond simply curving values and useful to have in a particle system as well as GUI components.

[gamecreator]

Proper character controller that can take physics commands, be repositioned any time without issue and interact with physics objects [1 2 3]. Bonus points if you can optionally constrain it to the 2D plane. I know Aily had to write his own for his game and I'm struggling with mine.

[Benton]

PhysX