The arrangement will see Spinmatic titles made available to a distribution network featuring operators across the European regulated markets.
Spinmatic has more than 70 titles within its library, including Sizzling Blaze and Fruity Beats Xtreme.
The developer joins the likes of Ruby Play and Spadegaming as Powered By Relax partners.
“Choosing a distribution partner is a key element for any kind of business and picking Relax Gaming was a very easy choice for us,” Spinmatic sales director Adam Spisak said.
“The reputation of their programme is second to none, and we are confident that they will offer us the scope we require in order to strengthen our growth.”
Simon Hammon, chief product officer at Relax Gaming, added: “It’s with great pleasure that we welcome aboard Spinmatic to our Powered By Relax programme. It has already made its mark in slots provision with a number of high-quality casino titles and that’s exactly what we look for to boost the content we offer.”