Perfect World may sell itself to its founder in a deal that would take the Chinese online game developer private.

The company said Michael Yufeng Chi, offered to pay $20 per American depositary share for interests that he does not already own. That's a 27 percent premium over its Wednesday closing price of $15.76.

The proposal is being considered by the board, the company said Friday.

Shares of Perfect Word Co. jumped 20 percent in premarket trading.