Slots meets bingo meets Rainbow Riches
Launched in 2018 as the first release under Gaming Realms' licensing deal with SG Digital (now Light & Wonder), Slingo Rainbow Riches crosses the Slingo bingo-slot hybrid with Barcrest's Rainbow Riches. You get a set of spins on a single reel below a 5×5 number grid; matching numbers mark off the grid, and each completed line — a Slingo — moves you up the bonus ladder.
The official published RTP is 95.6% with medium volatility.
The bonus ladder
Climbing the ladder unlocks the franchise's bonus rounds in sequence — from Wishing Well picks through Cash Crop, the Magic Toadstool, the multiplier trail of Road to Riches and finally Pots of Gold. Joker and Super Joker symbols let you mark numbers to speed the climb, and extra spins can be bought at the end of a game round at a price that scales with your grid position.