A campaign planner and manager with loads of world building tools. The online campaign manager has system flexibility with features include:




Realm Works is described as 'Database software and worldbuilding tool for roleplaying games' and is a role-playing game in the games category. There are nine games similar to Realm Works for Web-based, SaaS, Mac, Windows and Linux. The best Realm Works alternative is Chronica, which is free. Other Realm Works like games are Toyhouse, LegendKeeper, World Anvil and Notebook.ai.
A campaign planner and manager with loads of world building tools. The online campaign manager has system flexibility with features include:




A community for collaborative character creation and trading, worldbuilding and roleplay. Toyhouse is invite-only and only premium users can give out invites.

LegendKeeper makes it easy to build immersive worlds for stories and RPG campaigns.



Write articles to detail and keep track of everything in your world! Choose from over 25 templates designed to inspire you with prompts and deepen your worldbuilding! Embed your maps, and include images, music and sound effects, and even secrets and spoiler markers, for an...



Notebook is a set of tools for writers, game designers, and roleplayers to create magnificent universes — and everything within them.




YARPS is a smart web application for creating and managing vivid worlds, planning and documenting your stories, enhancing your role-playing with portraits, interactive maps and music and for trading RPG content.



web aplication, not downloadable


Scabard is a rules neutral RPG campaign manager and planner. We have campaigns for D&D (various versions), Pathfinder, Traveller, Savage Worlds, Warhammer, and a host of others.




not able to download program, online only


Neverkin is a free and open-source webapp aimed at different kind of writers and storytellers that have large stories or worlds to keep track of. It includes a wide range of features and it keeps evolving. For example, Neverkin provides:




EpicWorldBuilder.com gives you a unified space to build worlds, design maps, run campaigns, and play online with friends without juggling multiple apps. The world-building system works like a personal Wikipedia, with pages for characters, places, items, and lore that you can...




there are PLENTY of other web apps for world building, but Realm Works is a DOWNLOADABLE program, unlike this