Though there exists a free stroke order font for Kanji, none seems to exist for Chinese characters. I started developing one based off the freely available AR PL UKai. It's still in it's infancy and the primary purpose for now is to have it incorporate all the HSK and most common Chinese characters. In case the character has not been annotated it just represents the unchanged character. You can download version 0.0.3 (HSK1, 2 and 3 complete) here. The font is licensed under the Arphic Public License.