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.
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.
Imagine the beginning of a great adventure: You are standing in a forest. The sky is blue, the sun is shining and the wildlife is wandering about. There is a guy named Jack, Steve or Brat next to you, who will turn out to be an invaluable source of information, for he is The Guide. With great foresight you brought a set of tools along, so you can start right away. What will it be? Do you want to start digging, to search for valuable ores and treasure caves? Or do you want to attack that slime creature that is coming closer, in the hope that it will drop some valuables? Or how about building a base, maybe a log cabin, first? All of this is possible in Terraria, an open-world 2D platformer, that combines the fun of exploration, fighting and building in one game.