7800OpenBIOS, an open replacement for the 7800 BIOS

Source to the 7800OpenBIOS itself is provided under the CC0 license.

The included KiloParsec game is not provided under the CC0 license. You may 
only distribute the KiloParsec game as part of the 7800OpenBIOS, running via 
console BIOS ROM or equivalent. Distribution of KiloParsec in cart form is 
expressly forbidden.

The 7800OpenBIOS was created by Mike Saarna.
The KiloParsec game was created by Bob DeCrescenzo.