Shelter is Watership Down: The Game. That is to say: Harrowing.

[PCGamesN]

[url]http://www.pcgamesn.com/indie/shelter-watership-down-game-say-harrowing[/url]

[GhostG45]

Wow that really got me when the hawk swooped down.

This game actually looks good.

[The_Marine]

Well, that looks potentially heart breaking to play.
Those sounds. :(

[graymic]

This looks like some hilarity could be had. Might give it a go. Like the art style too.