From the announcement:
Almost everything you need to play is freely available on this website, including rules, scenarios, play articles and cards. Everything, except, of course the miniatures. Game statistics for miniatures used are released in the Sellsword Card Sets, with each card bearing a short description of the appropriate miniature to associate with it. As a player, you need only to find yourself a suitable miniature that matches the description. It’s a simple concept that seems to have been in hibernation since the golden age of gaming. Now, its back.
Sellsword is here.