Nasty Looper is a free VST plugin that i often use in my setup, despite of being a VST for Windows 32-bits, it can be a powerful tool in your studio and for your Live Performances…
I really love that one, SL Drums 3 by Beatmaker is an easy to use free VSTi drum kit rompler, it has a number of parameters and includes the ability to route each sound/pad to a selected channel of your DAW’s mixer…