Play Rainbow Riches and other casino games instantly in your browser here at CasinoEuro. Play slot machines and other casino games free or for money. Click to play Rainbow Riches now at Sky Vegas online Casino! Or try games including roulette, blackjack & slots. New customers get £10 completely FREE. Rainbow Riches is becoming a classic in the UK and is also hitting the Vegas casinos and going down a storm. With that lucky Irish charm and fun bonus games.