SiEn Art (시엔아트) was a South Korean game developer and publisher. The company was founded in June 1993 as Sigmatec, and changed its name to SiEn in 1995. They mostly developed action games. Their best-known title is The adventure of Tipi (1995), which was released in the West. The company's president was Lee Chanwon. SiEn became defunct in 1998.

AKA:

Sigmatek Studio (from 1993 to 1994)

Sigmatek Entertainment (from 1995 to 1995)