Inklings [Steam, Official Site] is an indie lemmings-style puzzle game with simple visuals, guide your Inklings to safety! This game comes from a family team of developers.
The developer told me that himself and his brother developed it, while their mother had a hand at the level paintings.
I've tested it out for a bit, as the developer sent in a key and I haven't come across any problems. It's quite a nice game, but it is rather simplistic visually.
It's not really hard at the start, but as usual looks are utterly deceptive here. The later levels do of course get more and more challenging, even some of the earlier levels had me stumped for a while.
It is quite relaxing with the ambient music and it's fun to see more developers try a lemmings-like approach as I adored that game on the Amiga when I was a young lad.
Check it out if you like a challenge.