After the Fall of D'ni, Gehn attempted to revive the D'ni civilization and educated his subjects accordingly. On Riven, in an attempt to imitate the D'ni culture, and keeping with his preoccupation with number 5, he established five Rivenese Guilds.

The Guilds were made in imitation of the D'ni Guild system (in a far smaller scale). All that is known about the Guild system is that each Guild had Guildmasters.

The Guilds are represented in one of the icons in the Beetle Room, with Gehn overseeing the 5 Guildmasters of each of the Guilds, with figures representing characteristic Guild tasks (eg. the Bookmakers collecting papers falling from a tree).