PopRe's matchmaker can be found here. This is the largest fan created community about the game. This community is controlled by Inca and administrated by Kiyana, TheGabber and CDplayer. Shakkazulu, Walhalla and Apnea are the 3 moderators. The mappack checkers are Nefarius, Tarigon and Wicked. Some of the programmers include TedTycoon, ProtonageNet, Red and Khickman. I am not sure which version this is, but you will need to run your update before using the program.
A secondary Populous community where very few players access to play Populous anymore. This client is led by Warg, who used to be apart of PopRe community many years ago. This may not be the updated version.