STOCKHOLM, July 21 (Reuters) - Sweden's Evolution AB reported a 115% jump in second-quarter core earnings, beating market estimates, as the pandemic boosted demand for online casino games, particularly in the United States.

The company, which develops and licenses casino games such as online slot machines and roulette games, said quarterly EBITDA rose to 174.7 million euros ($205.69 million) from 81.1 million a year ago, beating the mean forecast of 172.3 million euros, according to Refinitiv estimates.

($1 = 0.8493 euros) (Reporting by Supantha Mukherjee in Stockholm; editing by Niklas Pollard)