Huge free bundle of basic effects.
Hybrid (convolution/algorithmic) reverb that takes a different approach.
The Mo’ Verb chose a slightly different approach than most other reverbs I’ve seen. Using an actual EQ is quite common in convolution, in algorithmic there is usually something called dampening.
Glimmerverb, another free reverb by WOKwave.
The liscverb is a big and versatile reverb unit.
The Bigrev is a simple reverb, offering only few controls.