It has crop farming, animals to raise, fishes to... fish, mines to explore, enemies to fight, villagers to romance, museum collections to complete, festivals to attend and a bunch of weird, mysterious secrets hidden around the world. The developer has also says he intends to make multiplayer for it, and to continue providing free updates and continue to expand the content of the game for the foreseeable future. Also it has pretty awesome music, inspired by several classic RPGs like Chrono Trigger.
I've been playing it myself, I'd say it's definitely worth checking out and buying(And I'm sure you all know how I feel about paying for things - hint: I don't like it). It is early in its release so there are still some bugs, however the developer is actively responding to and working on fixing them as they appear.
Have some screenshots.
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[Image: https://pbs.twimg.com/media/CcKMb5hUkAAX3um.jpg:large]
[Image: https://pbs.twimg.com/media/CchqYzyW8AAKEqw.jpg:large]
[Image: https://pbs.twimg.com/media/CcCAOQwUkAAUgh8.jpg:large]
[Image: https://pbs.twimg.com/media/Cb3TCeTUkAAZf3E.jpg:large]
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http://stardewvalley.net/