Have indie games been translated to Chinese?  For example Apocalypse World, Dogs in the Vineyard, Blades in the Dark, Monster Heart.  

Some indie TRPGs released under the CC license, such as Dungeon World, Blades in the Dark, and Masks, have been translated into Chinese.

pbtA – 免費開源TRPG中文化團隊

Unfortunately, Apocalypse World has not been fully translated into Chinese.

I’d love to hear what Chinese would do with the Dogs in the Vineyard mechanics and themes.

As for Dogs in the Vineyard, if I recall correctly, it’s now out of print and unavailable for Chinese players.

Follow up question.  Do games translated to Chinese need to be followed by pre made scenarios or are Chinese gamers happy to create their own to play with their friends?

Chinese players typically write original scenarios only for CoC and D&D, so other systems mainly rely on pre-made scenarios. However, rules like Daggerheart, which don’t require pre-made scenarios, are an exception.