Mystery of Eden
The first part was released in October 2002. Part 2 followed in March 2003 and Part 3 in August 2004.
This series consists of a variety of different levels all with the flair of the original games.
The first part is in Rome-style, with Gladiators, dungeons and more.
The second part starts off in an City Of Tinnos-like environment.
about 100 MB alltogether
Level Designer's Website