Under the licence, Scientific Games will develop new slot games for traditional gaming machines, video lottery terminals, and on-property handheld devices.
Chief executive of Gaming Realms Patrick Southon told investors: "Following on from the success of our printed lottery products partnership with Scientific Games, we are delighted with the opportunity to bring Slingo to slot machines in casinos around the world with a market leader."
The five year agreement includes a minimum guaranteed royalty stream to Gaming Realms payable within the first two years.
It expands Scientific Games' existing licence to produce Slingo branded scratch lottery tickets, which has sold over $1 billion dollars' worth of tickets across 36 US States and three international markets.
Gaming Realms shares nudged 0.72% higher to 20.90p.