Super Hexagon creator Terry Cavanagh's latest title, Naya's Quest, is a free game you can play in your browser.
Naya's Quest combines simple keyboard controls and platforming with head scratching puzzles. Players navigate a pink-haired woman through a grid-based, isometric world while using a strange device to manipulate the game's levels. As you explore, the story plays out through text narration.
You can play Naya's Quest, in addition to Cavanagh's other freeware titles, over at his website.