KResearch has released the KR-Reverb FS version 1.1.0, a free reverb processor.
Features:

Adjustable Early Reflections Size
Adjustable Late reflections size
Adjustable Diffusion control
Adjustable Decay control
Adjustable Listener position control
Dry/Wet Mix adjustment.
Host Sampling Frequency up to 96KHz
For Microsoft Windows OS (VST)
Suitable for all Pentium CPUs
Mac OS X (AU UB,VST MAC)
Support for User definable presets
(Save & Load) via Host interface

It’s available for [...]

pfilter is a free Windows VST that creates a steppy, gated effect, but using filter cut-off instead of volume to give a wider range of possibilities. It uses a variable state filter, triggered between 2 adjustable cut-off values by a tempo-sync’d probability-based step sequencer. An LFO can modulate the filter when triggered and trigger pulse [...]

Políssonos is a free loop-based MIDI sequencer for Mac & PC designed to “elicit the relation between the rhythmical division of time and the shapes of polygons.”
A simple midi sequencer at its core, Políssonos is mainly a proposal for a loop orientated alternative to the traditional “piano roll” interface.

CodeAudio has released BeatBurner, a freeware Windows beat mangler.
Here’s what they have to say about BeatBurner:
Using innovative wave shaping and filtration methods, Beatburner turns innocent drum beats, loops or sounds into new, fresh and vibrant audio parts for you to incorporate into your musical arrangements.
BeatBurner comes with a myriad of sample loops to get you [...]