DreamPi
Sega may well have closed down their official servers for the Dreamcast years ago, but as of late there has been several community efforts to get reconnected. While many of these modern alternatives required the pricey Dreamcast Broadband Adapter, those with the standard 33.6k/56k Modem Adapter are now in luck.
DreamPi is a new device that makes online gaming on the Dreamcast all too easy. By simply connecting the Dreamcast Modem to the DreamPi, the DreamPi will connect Sega’s console to the world wide web once more.
This version of the DreamPi only works with US/JP Dreamcast Modems due to that the built in Line Voltage Inducer is running at 10V. PAL Modems need 20V.
The product price is charged for the service of assembling a nicely built DreamPi.
Product image might vary slightly from actual product due to occasional changes in parts used.
Working game list
http://www.dreamcastlive.net/games.html
Connection Guide
http://www.dreamcastlive.net/connection-guide.html