Sid Meier's Alpha Centauri™ Planetary Pack

This game is amazing. I gave four stars instead of five because this version has the "Scrambling Air Defense Bug". When you hit the turn button and the other players move your air-to-air units will scramble if an enemy air unit attacks. Sometimes on large maps this air scrambling will cause the game to crash. Reloading the saved game again won't help. It'll just crash again. Do a web search for "Scient's patch" for a fix to the problem.

A tremendous game that managed to evolve the classic CIV formula to its Zenith, Mixing in social engineering, terraforming(That has yet to this day been matched) and a set of faction leaders that really interplayed well. It even had a robust unite design tool that let your imagination run wild. The expansion was just a wonderful addition to the main game, doing all the stuff an expansion should. And in disk form was very rare. untill GoG added it in I was always ruefull about loosing my precious CD

Excellent like all of Sid Meier's work Alpha Centauri is much like CIV2 in terms of gameplay but with a unique sci-fi backstory and flavour text that makes it a great piece of sci-fi in addition to being an addictive near perfect 4x game

I signed into GOG many years ago only to have this game. I've definitely not regret of what I've did. This is maybe the most flexible and customizable of all Civilization series games. Unit and government customization, 7 faction different from philosophy (Scientist, Capitalists, Militarist, Totalitarist and so on). Causes "only one turn more and I quit" dependency

One of the greatest strategy games ever. A must have in every GOGer's Collection and a true bye-bye-productivity game. Just one more turn...