These OBJ models were designed for use in Sculptris to give you a head-start creating dwarf characters. If you import them into Sculptris, their parts should remain separate and you can immediately begin sculpting and posing them any way you like. You can find a growing collection of compatible parts here.
We're currently running a Kickstarter campaign for our Townsfolke fantasy civilian miniatures, so swing by and drop us a pledge if you want the full range. For those of you supporting us (or thinking about supporting us) on Patreon, all the rewards will go to our backers there as well (as we do with all our crowdfunding campaigns).
This is something for which we've received a lot of requests over the years, so we're excited to finally be getting around to it. All of the models print without the need of supports and are FDM optimized (though they'll work just fine on a resin machine too). We're launching with 16 available miniatures, with 12 more ready to be unlocked as stretch goals (and more to come).