Early access campaign management software in Steam:
Based on the customer reviews, it really seems like an early access product. But at least it’s free...
https://store.steampowered.com/app/1039110/Ikarus/Ikarus is a tool for creating and building your own world. Unlike other world-building tools however, it provides you with a completely customisable experience with near infinite possibilities for the way you structure your data.
Based on the customer reviews, it really seems like an early access product. But at least it’s free...