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