Mets fans can win free lottery tickets through the Jackpocket platform, as well as tickets to games with air travel and hotel stays included.
Additionally, Jackpocket will offer giveaways with prizes including officially licensed Mets merchandise.
Jackpocket Founder and CEO Peter Sullivan said: "Partnering with the Mets has been a dream of mine, especially as a baseball fan. New Yorkers love the lottery and Jackpocket is always looking for ways to meet players where they are.
“With this latest professional sports partnership, we expand on the unique experiences created for our sports fan base and provide Mets fans with a new way to play and win."
The deal marks Jackpocket’s fourth partnership with an MLB team, after previously securing deals with the Minnesota Twins, Texas Rangers and Colorado Rockies.
Mets VP of Partnerships Brian Fling said: "As we look more and more to digital-first solutions and moments to engage with our fanbase, the New York Mets are proud to partner with Jackpocket, an institution that's trailblazing the digital lottery space.
"This partnership cements our dedication to exploring new ways for fans to get excited on game day and beyond."
Jackpocket will have the right to use official Mets logos and branding for marketing purposes, as well as the chance to promote across Mets digital and social channels, to offer free tickets and exclusive sweepstake prizes.