** Playside Studios PLY.AX plunges as much as 36.4% to an all-time low of A$0.105

** Stock posts biggest intraday pct decline since January 29

** Video game developer says co-founder Gerry Sakkas has resigned as creative director and board member

** Adds it will not seek a replacement immediately

** About 2 mln shares traded in stock's busiest day since February 7

** PLY last down 18.2%, taking YTD losses to ~67%

(Reporting by Aaditya Govind Rao in Bengaluru)

((Aaditya.govindrao@thomsonreuters.com;))