I found out about the Hapland series a long time ago... but the links in this forum made me look it up again.
There are 3 games in the series, I had only seen 2 before, so bonus for me
The puzzles are EXTREMELY difficult. You must think outside the box and have a lot of patience. It really gets the mind going.
This is the link:
Hapland On the bottom of the screen there are links to the other two games in the series.
I can't help you with hints on the first 2 games, 'cause it was a long time ago. But I'll get started on puzzle 3 immediately because that's new to me.
Have fun!
Edit: There is a question mark (?) in the bottom righthand corner. Click it for instructions. The goal is to light the torches around the portal.