We're making an MMO, something that has never been done in FOSS before*. It's a 3D simulation of an advanced lunar town, based on hard science and engineering. It's a sandbox world where visitors can add things that become permanent parts of it, so over time it evolves and enriches.
For now the demo allows you to explore the huge habitats and installations, learning about the town's technology by activating tooltips, audio clips, animations, and slideshows. There is a rover to drive outdoors, around Lalande Crater, which is a real place on the moon. Chat with other visitors. The UI shows our plans for adding gestures and expressions for your avatar, and various tools for making things.
The next target is to start adding displays about real space development projects and concepts, in the giant habitat set up for that. New 3d models will be added there and tricked out with interactivity that explains them.
Then we will add the ability to pick a spot in a neighborhood and build your home. Our NPC editor will also be fleshed out so that people can add entities to their neighborhoods, and advanced users can add entities anywhere in the world.
License: MIT, CC-BY if you prefer for game assets
Made in Godot 3.2 (hungrily waiting for 4.0)
Website: https://www.moonwards.com/
Main repo: https://github.com/moonwards1/Moonwards-Virtual-Moon
Discord server: https://discord.gg/x4A9FsZxFv
* I've been advised by @rah that there are a number of FOSS MMORPGs - which has merit. I wasn't aware of that and had taken the word of one of our devs that there weren't other FOSS MMOs. However this game is quite unlike an MMORPG, and I would really say it counts as different enough from anything done in FOSS so far to be considered in a different category of game. The FOSS project most similar is OpenSimulator.