Translated from website
"Mega is a French Science-Fiction RPG created in the 80s. Initially published as a special issue of Jeux & Stratégie, it live for 3 revisions ; the last one, Mega III, was published by the magazine Casus Belli in the early 1990s.
Mixing several Sci-Fi genre, as well as fantasy and travel through history or bizarre, Mega "le jeu de rôle des messagers galactiques" sent you into extraordinary adventures."
The encyclopedia is a compilation of everything that has been published about the universe of Mega from 1984 up to 2012...