OpenJazz is a re-implementation of
the jazz Jackrabbit 1 engine.
JCS '94 (Project *that*, J1CS)
One of the most interesting programs
from the Jazz community,
JCS '94 allows you to
edit Jazz Jackrabbit levels. I played a peripheral role in this
project.
Jazz Swapper
A program that organises
Jazz Jackrabbit 1 levels, making it easier to use the output of J1CS.