Stardew Valley is a very popular Steam agriculture game which is available from 2016 February but only in English. The game in many ways similar as the Harvest Moon series but has several unique and very fun features.
ConcernedApe and Chucklefish started to working on several translations includes Japanese but a sad news released today: the release of the non-English version of the game postponed!
The postpone affects all the planned translations such as Japanese, Chinese, Russian, Brazilian Portuguese, Spanish, German.
ConcernedApe planned to release the translation package for the game in 2016 October but something happened and they said it will be available when they are ready.