** Shares of Streamplay Studio SP8.AX rise 13.6%, their biggest intraday gain since November 17

** Video game developer says its game Winter Burrow generated A$3 million ($1.96 million) in gross revenue in 18 days since global launch

** Contribution led to group achieving 29% of its FY25 pro-forma revenue in little under 3 weeks

** Over 3.5 million shares change hands, compared to a 30-day average of 1.9 million

** Stock up 38.9% YTD, including session's moves

($1 = 1.5293 Australian dollars)

(Reporting by Adwitiya Srivastava in Bengaluru)

((Adwitiya.Srivastava@thomsonreuters.com))