Quell Zen

This is a soothing puzzle game where each solution is possible, but not trivial to figurer out except when a new aspect of the game is being introduced.

Still a thumbs-up, but unfortunately this is by far the weakest of the Quell games. The complexity is just too much – in theory it'd be great: More levels, fancy overarching theme and all the mechanics from the predecessors. But having 30+ moves levels with multiple raindrops being the norm instead of the exception as in the original three games made me enjoy this much less. It may sound like a minor difference, but figuring out a solution when more than one raindrop is involved is exponentially harder. If not for the (excellent, as in all four games!) built-in help mechanism I might have abandonded it. But not actually playing parts of the game because figuring it out on my own just isn't fun enough isn't great – in the first three games I only very, very rarely consulted the help and enjoyed myself all the way, this was a bit of a drag to finish.