I don't know what Project Ego is and I don't like Fable, so I suppose I wouldn't do anything out of the ordinary.
In it's early development stages Fable was called Project Ego and incredibly hyped to be this RPG life simulator everything you do, every choice you make changes the world around you, everyone you talk to changes the game in some way. They even had these grand in game screen shots that ended up not making it into the game. Your character was supposed to age in real time and level up in real time as you swing heavy swords, cast spells or what have you. Peter promised that every game would play out differently depending on how you play your character, Project Ego was also one of the first games announced for the Xbox and spent years in development before it finally came out. I didn't hate the game, it was pretty good for what it was but it wasn't anything that it was hyped to be and didn't play how it was described.