Casino software developer Playson works with popular operator WinBet to mark the slot supplier's first entry into the Bulgarian market.
The deal will give WinBet's customers in Bulgaria access to Playson's popular series of Timeless Fruit Slots and games such as Solar Queen, Book of Gold: Classic and Sakur Dragon.
Playson was recently granted a Class II license by the Romanian regulator (ONJN), and the move is the latest in a series of strategic agreements in which Playson is expanding its presence across several Eastern European markets.
Blanka Homer, sales director at Playson, said: "We are proud to join WinBet in this partnership and bring innovative slots to players in Bulgaria and Romania.
"This new contract gives us more access to the Eastern European market, giving more and more fans the opportunity to play our exciting stable game."
Tsvetin Yordanov, CEO of Winbet Online, said, "We are excited to sign this agreement to receive a fantastic portfolio of games from Playson, and this offer will be a welcome addition to our customers.
"Playson is a highly respected company in the industry and we look forward to establishing a long and productive business relationship with them in the years ahead."