Warehouse is for people tired of easy puzzle games where you play a few levels and find the same problems repeating themselves over and over. In response, Dimension Q has created what we believe to be one of the most challenging puzzle games in recent years. It requires patience, a sharp mind, and an understanding that it's OK to have to start a puzzle over. Warehouse has fifty levels, enough to hurt your brain for at least as many hours. Don't feel bad if you can't beat every level, there are only a few easy puzzles, several moderately hard puzzles, and the rest of the collection are either hard or very hard. *This game description must open with a disclaimer! Despite the colorful graphics and charming music, this game a real brain buster. Compared to your typical modern puzzler, it's difficulty is very high.*
Level 29 at the start, it's a bit tricky, but a completed version is viewable in this gallery.
Level 8 on OSX.