Software : Voice Changer 
Type : Free To Use / Paid 
Site : Voice Mod.

Want to change your voice for any projects ? or for livestream gaming ?. Then you can try out this free to use voice changer for pc from voice mod. Lots of plugins included. You can install it, check out free available options and if liked, then you can get premium version too. 

(link sends you to voicemod site)