Return to Empire has broken into the top 10 highest-grossing games on iOS in the first 24 hours since its launch in China. It is a mobile version of Age of Empires available exclusively in the country. Niko Partners senior analyst Daniel Ahmad shared the data on [Twitter] , saying that Return to Empire debuted in first place on the iOS game download chart. Tencent’s TiMi Studios released Age of Empires Mobile in China today, based on the Xbox IP. It debuted at #1 on the iOS game download chart and is already a top 10 grossing game The marketing…