Autodesk provide some good 1-minute starter videos.

Autodesk Maya or 3ds Max are often used for modelling items which then need to be imported into a games engine such as Epic’s Unreal or Unity.

Issues importing an animated box to Unreal Games Engine:

Animating a skeletal mesh:

Sound for Unreal and Maya

Unreal requires sounds to be .WAV format (Maya allows ,.WAV or .AVI) as 16bit PCM. MP3 won’t work. You can use mono, stereo or a variety of surround sound options.

See the my-animation page on converting sound formats and sources of free music and sound effects