Most people here will have heard of FreeCiv, a freely available game inspired by Civ2.
But did you know there is another longstanding game with the same inspiration?
Meet C-Evo!
C-Evo has been in development since the times of Windows 95, mostly being a single person project. It aims to improve and fix mistakes from Civ2, and not to overhaul the game. It aims at a slim rule set, and the AI is made to win, not to roleplay.
As you can see from the screenshots it really has a Civ2 feeling too!
Civ-Evo is currently available for Windows and Linux, in English, Russian, Italian, Czech, German, and simplified and traditional Chinese.
You can download the current version here, and read more info about it here. And obviously we also have a thread for it here.