2) Dwarf Fortress, but with at least Double-A 3D production.
3) A proper Groundhog Day sim. There have been a dozen piss-poor cracks at this.
http://www.amirrorclear.net/flowers/game/devours/ Working online interpreter link: https://iplayif.com/?story=http://www.amirrorclear.net/flowe...
I like your thinking, though damn that would be one hell of a project.
[1] https://store.steampowered.com/app/975370/Dwarf_Fortress/
For time travel, exploiting quick save/load is a sort of backwards time travel.
2) Dwarf Fortress, but with at least Double-A 3D production.
3) A proper Groundhog Day sim. There have been a dozen piss-poor cracks at this.