well guys, i totally agree with quidproquo(you explained well dude), but its not just the fun and tense that has changed in the games so far.
you'll find that AO was totally hard to beat,
when you played AE afterwards you think: wow so i've already saved this much muds of the total, without breaking a sweat. uh oh now comes a hard part. and now comes the part where il free 10 muds at a time by pulling 1 lever.
then if ya play MO afterwards its just plain easy if you'll ask me (no offence to anyone and anything around here), the only thing wich made it long were the extended amount of quests you had to accomplisch first. (sorry im dutch so dont bother my spelling stuff

)
i cant say anything 'bout stranger yet 'cause i live in holland and im unable to buy yet.
so my actual point is: the games (i've played so far) are weakening.
but still the games have all one thing in common: when you reach a certain point, you're adrinaline spit reaches very high peaks.