Like the Genesis, the Saturn had an internet-based gaming service. The Sega NetLink was a 28.8k modem that fit into the cartridge slot in the Saturn for direct dial multiplayer. In Japan, a pay-to-play service was used. It could also be used for web browsing, sending email, and online chat. Because the NetLink was released before the Saturn keyboard, Sega produced a series of CDs containing hundreds of website addresses so that Saturn owners could browse with the joypad. The NetLink functioned with "Daytona USA", "Duke Nukem 3D", "Saturn Bomberman", "Sega Rally", and "". In 1995, Sega announced a variant of the Saturn featuring a built-in NetLink modem under the code name "Sega Pluto", but it was never released.