Tier 1 has this "do it right or die" situation. One misplaced river or calcifier and you run out of money. You have some, but not nearly enough to correct your mistake, and a single undo does you no good. You are stuck and need to restart. Before you learn to be efficient you fail several times. On the other hand, once you literally lay the ground work and cover a decent chunk of the land with reclaimed area it is cash out time. You can start with placing bee hives for a big chunk of money for example. You also get the lab, that enables cheap tools to fix small issues. At tier 3 you are even less locked in because you get the ability to recycle buildings... and so on. :) The game gets more forgiving the later it gets so I guess it is "hard to learn easy to master" :D Anyway it is great fun and thank you again for creating it. Pledged 5$ :)