https://www.reuters.com/article/us-rovio-results/angry-birds-maker-rovios-third-quarter-profit-halves-year-on-year-idUSKBN1X90K3 >Rovio Entertainment, the maker of the 10-year-old "Angry Birds" mobile game series, reported on Wednesday a 48% drop in its quarterly profit year-on-year, due to higher costs to obtain new players.