Under Cover and Anoic the Hedgehog are two more Backbone games which are in this pack -
http://aminet.net/package/game/misc/amigang
Fallout 3 is a more recent Backbone game -
http://www.amiga.org/forums/showthread.php?t=59137
With Downloadable Content -
http://www.amiga.org/forums/showthread.php?t=59371