There's always World Anvil. They have a free member tier that includes decent basic tools/features. But I just checked the site, the lowest paid tier has a few improved features and its $54/yr USD plus they have a 50% coupon for the next day or so. Source: about 1 year ago

Always: when in doubt: change password asap and make sure to reset via the original site, not a link in your email. (worldanvil.com looks like worldanviI.com but it is not. Some fonts don't show any difference.). Source: over 1 year ago

Hi there! To create a new world, go to the global dashboard (worldanvil.com, or click the World Anvil logo on the top left), go to the "Your Worlds" tab and click the create world button on the right. Freemen, as the other commenters said, can have two separate worlds. Source: over 1 year ago

Such an engine already exists at worldanvil.com, including a discord channel for just such an enterprise. I am a lifetime Sage there, so if you end up using it, let me know. I can help you get the project together. Source: over 1 year ago

Per sources from worldanvil.com, Darandra's Thrill is a keelboat which Tirah the Shark uses for smuggling. I adjusted Darandra's Thrill to fit my campaign and turned it into a gambling riverboat. This map represents the main gambling hall where visitors descent from the main deck. Despite being a gambling hall, the room emanates calm spiritual aura and many visitors chill here, smoking from waterpipes, listening... Source: over 1 year ago

SDFs are pretty cool. They come up from time to time. For example, Womp3D[0] uses them. [0] https://womp.com/. - Source: Hacker News / 7 months ago

There’s also an sculpting thing called WOMP Https://womp.com/. Source: about 1 year ago

You're probably thinking of Womp 3D, which is good for making 3D assets in a Dreams-like way. Source: about 1 year ago