Is this even possible without cheating? I've never even gotten to the 10th level and it seems the vast majority of players haven't either, how on earth are you supposed to get to the 21st?

Is it better to skip to the new island as soon as it becomes available or to play out your current island maximising your score until you run out of buildings?

Also is the mouse middle button / wheel required at all? I play with mostly left + right clicks only due to an injury. Thanks!

Is there a guide or chart for this? As I was curious how many points you'd need to move to the next island. As I'm currently trying to get all Achievements, I thought it might be helpful. If I recall correctly, your amount of points needed won't be affected by whether or not you had a high score on the previous island, right? Thanks...

I am trying very hard to geht the achievment lord of the tower but the maximum I got on a map was 3. Is it pure luck? Also I got more then 2000 points on an island with snow and snowfall but nothing happened.