Yes, but with caveats. The developers have partnered with several platforms for limited-time free access. Here are the only legitimate methods to get the game for free:
Monster Park 2: Final Edition arrives as the definitive version of the franchise’s follow-up, polishing mechanics, expanding content, and packaging exclusive experiences intended to entice both returning fans and newcomers. This article summarizes what the Final Edition delivers, evaluates the “free” and “exclusive” claims, and offers practical guidance for players deciding whether to jump in. monster park 2 final edition video game free do exclusive
You cannot get the official Final Edition for free, but you can get the Gold Edition (standard game + community mods). Wait for the standard Monster Park 2 to go on sale for $4.99 (it happens every Steam Summer/Winter sale). Then, install the Community Final Patch (available on Nexus Mods). This fan-made mod adds exclusive content the developer never finished: Yes, but with caveats
Cost: $4.99. Result: 90% of the Final Edition experience. Cost: $4