DoggNation

The Doggs (which are actually real dogs) have a castle that needs to be upgraded. They have all the bricks they need but hounds aren't great at architecture. You have to make sure they get to the castle with the right number of correctly combined bricks. There will be a line of doggs that hold coloured bricks and others that will come to carry bricks to the castle. The carriers can take a brick from every holder. If you want to skip a brick you simply turn the holder around. Other gameplay elements are revealed later: switchers, stops, height barriers and even bones and refreshments. The game is quite logical and some levels really require a lot of thinking.

+ great concept
+ so many levels (I know of 33 so far)

- it's not for impatient people
- some levels are plain hard

Play it on NewGrounds