Free “character” compressor.
Free saturation & distortion plugin from Klanghelm.
Just got this and haven’t had much time to play with it, but was amazed at it from even the little time I spent with it. Worth it! Get it!
Very much like the IKMultimedia Sampletank Free, the Kontakt Player is a free plugin that allows you to load samples in multiple formats. It comes with a basic sound library, but you can purchase sound expansion sets, and even find some free samples to load and play. This is one of the only sample players to load and play SoundFont samples, so this is worth grabbing just for that.
Many “Kontakt” samples that you might find for purchase require the full blown version of Kontakt (a plugin that I do recommend) to be played, so that is something to consider, but this will work as a free plugin very well.