Anything Mod is a stereo audio effect plugin and a project to make it grow, so far it is a reverse delay, a ring modulator, a waveshaper, a comb filter, and a glitch generator, but it's not a multi-effect in the standard meaning.
Multi-effect usually means that you have more than one effect module in the same plugin, they are separate modules with a fixed routing or assignable at best, while in Anything Mod the effects interact with each other, both in the audio path and in the parameters settings. That makes it a unique kind of modulator.
Anything Mod comes bundled with another new free plugin: the "Tube Gain Booster".
Tube Gain Booster is a stereo, quick, audio level booster, compressor and saturator.
TGB raises the gain of the source input using waveshaping and compressing the dynamic range of the audio signal. The TGB algorithm can model the sound of a tube amplifier to some extent, since the carefully designed waveshaper has a "bias" that depends on the input level and the harmonics profile of "mode 2" gets pretty close to the one of the triode tube saturation.
TGB also features a crossover filter network for more sound shaping possibilities.
To read about the Anything Mod Project please visit this page. Download link and audio examples are provided there too.