too monotonous and rigid gameplay

Basically not bad, but you only play to fixed targets / tasks.
From time to time functions are not performed, in Level 3 I typed on the wood for 5 minutes and nothing happened.
In Level 5, I built two water towers to build houses, but 1 house makes me the game is not built, no matter how I place the towers.
Game play only with fixed tasks, nothing individual.
For me too monotonous, if you like a lot of fun.