At the end of its commercial life, the Amiga had some strange releases. As the viability of ports decreased, but wasn't yet completely absurd, the key was often to cut costs. Ports came late, if at all, and often hadn't been subject to sufficient quality control. Colonization was ported two years after its initial release by Microprose's UK branch. It doesn't do completely horribly, but also shows the typical signs.
Seas of Blood… this is going to be a tough discussion for me, because I have to admit this was the gamebook which I read/played more often than any other when I was a kid. Whether this was due to thematic preference, due to gameplay-related strengths or other aspects, we will probably find out. However, I cannot guarantee that I can stay objective at all times. Please excuse the occasional drift into nostalgia.
Ask yourself: What can be said about a game that has become a legend? You either know about The Secret of Monkey Island, and chances are that if you are reading these lines you do so by heart. Or you spent your life in a bubble far away from computer games of the pre-Internet era and do not care about them anyway. The game must have been analyzed to death by now, each and every detail investigated and explained. It would come at no surprise if the there even have been scientific papers written about it. Top it of with a plethora of personal stories connected to the game and it must have outgrown its humble beginnings by far.