(Telecompaper) Over half (59%) of Germans who play mobile games on their smartphones or tablets are aged 30 and over, equal to almost 13 million Germans, according to the latest GfK research released by industry group BIU. This is up from 54 percent a year earlier. The number of over 50s playing mobile games has increased to 3.9 million in 1st-half 2015, up 34 percent from 2.9 million in 1st-half 2014. The average age of mobile gaming app users in Germany is 35. Overall, the market for games apps in Germany generated sales of EUR 175 million in 1st-half 2015, up 54 percent from EUR 114 million a year earlier. Revenue from in-game purchases increased to EUR 153 million, up 72 percent from EUR 89 million in H1 2014.