Slingo Fluffy Favourites, Slingo Rainbow Riches, and. Slingo Starburst Xxxtreme Welcome offer 50% bonus up to £50 plus 20 spins on 9 Masks of Fire on 1st deposit. Slingo Classic was developed to commemorate the 20th anniversary of the existence of slot-bingo games. ACS. Bust The Bank. Approval Date. ACS_ Slingo Classic 20th Anniversary by Slingo · Wild Space. Theme. Double Angels. Play for Mega Fire Blaze: 3 Wizards by Playtech · Divine 9. Manufacturer. ACS_ Dec ACS. THEME ID. Slingo Classic 20th Anniversary. . Play for Free. Slingo Cascade 2.