Hi everyone. I just started making a quick little caveman game in Backbone after being inspired by Viddi, who is also beginning work on a new Backbone game (following his epic Ambermoon Arcade). I checked the link to the Backbone games in this tutorial but it was dead, so I have uploaded the original archive to my server so people can still download it if they want. It was put together before a few extra Backbone games have come about so I'll link to those too, for anyone who wants to see what kind of games it's possible to make in Backbone.
http://home.exetel.com.au/amiga/BackboneGames.lha <-- A bunch of older Backbone games. Half are incomplete, but still worth trying.
http://aminet.net/package/game/jump/Cornelius <-- Cornelius Saves Christmas, a full 30 level game. Winner of third place in the Festive Game Making Competition
http://eab.abime.net/showpost.php?p=622075&postcount=1 <-- Ambermoon Arcade, complete with labels to print for an authentic package. It was recently reviewed in Amiga Future magazine!
http://sonicamiga.blogspot.com/ <-- This is a Backbone game project that was started but never went anywhere, a Sonic the Hedgehog fan-game. I'll have to search around for the file the page links to and upload it to my server in case anyone still wants it.