For those like myself who have wanted this but for Civ1 (all 4 of us), someone on CivFanatics has made incredible progress, and the game is actually playable now: https://github.com/rajko-horvat/OpenCiv1
I'm with you-- civ 1 is by far the best! I adore the wonky graphics. None of the new ones hit the same.
So there's
- OpenCiv1
- FreeCiv (civ 2)
- OpenCiv3
- ???
- UnCiv
I'm curious why civ 4 is the one that got skipped. I feel like it's the one that is most commonly labelled as the "peak"