Yet another one of those nifty-cool freeware games that pops up on the 'tubes, the cleverly named An Untitled Story is a challenging little metroidvania in which you’re an egg.
And that’s all the game tells you to start with. Give it a go. It’s got a huge world with lots of stuff to find.
Protip: Use a gamepad if you have it. It’s a little awkward to control with a keyboard.