If you've not played it, you've got to try Slime Rancher. Trading crops for creatures and sweet potatoes for slimes, it's one of the best life games on Steam with an astounding user rating and a plethora of free updates over the years. If that isn't already enough, you can grab the game for next to nothing right now thanks to a Steam sale.
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Free Steam keys: We're giving away ten copies of cute sandbox-shooter Slime Rancher!