Although not exactly like Dwarf Fortress, I've been playing Songs of Syx[1] recently and it's incredibly good. It is made by a single developer and it is super fun. It's more of an Empire building game, and it checks a lot of the boxes I want out of these sorts of games. I can see it becoming even more impressive and as time goes on. Demo is unlimited and free, it's just 3-6 months behind the paid version with features, so if you like it definitely support the dev.

[1] https://songsofsyx.com/