I would agree Stardew Valley has a ton of mods for it already. Including weight gain mods Stardew Fatties: Various standalone mods(with more on their discord server).
It alteast doesn’t seem to be a straight Stardew Valley clone with some fantasy elements and the combat looks to be more fleshed out, but at 24 bucks for early access probably going to turn away quite a few people. I know for me personally the low cost to entry for Stardew and the quality was something that drew me to it originally.