June is the first month of the calendar, and it logged one new slot: Marilyn Monroe Slingo from Gaming Realms. Gaming Realms made it exclusively for BetMGM, which announced the launch on June 30 to mark the centenary of Marilyn Monroe’s birth.
BetMGM’s announcement is the only source for the game so far. It gives no RTP, maximum win or volatility, and we haven’t found an official demo, so every field in the June numbers reads “not published”. We also haven’t seen it in a US casino lobby ourselves yet. The launch date comes from BetMGM’s announcement, not from a lobby check.
One game is too few for a spread or a ranking. June’s figures are kept so that the months after it have something to compare against.