Can you suggest something that doesn't involve killing people?

I recently bought World Of Goo and was completely blown away. I want more.
Braid is a lot like World of Goo in the sense that it's a puzzle/platformer made by an independent developer. But obviously there's a whole different point to the game, not to mention a protagonist. Regardless, it got good reviews and it doesn't involve killing people.

...And in that same vein there's Eets, which is essentially a Lemmings clone.