The Tunka experiment is a complex cosmic ray experiment which is located in the Tunka Valley in Siberia. Presently the experiment consists of three main parts: EAS Cherenkov array Tunka-133, EAS radio-detection array Tunka-REX and a prototype of Tunka-HiSCORE (HiSCORE: Hundred Square-km Cosmic Origin Explorer) a new Cherenkov EAS array for multi-TeV gamma-ray astronomy and cosmic ray studies. A current update of the array includes the deployment of scintillation stations, new radio antennas, as well as the low threshold optical stations of a first stages Tunka-HiSCORE.