Siannah: Love Alpha Centauri, played it to hell and back and will do so again. However, I never really enjoyed Alien Crossfire.
Compared with the other factions, the Aliens seemed rather overpowered. Playing a game with Crossfire, the Aliens always took the most dominant spot among all factions. Without Crossfire, each faction was able to develop to that point.
So, no. Just Alpha Centauri works for me as it always has.
Alien Crossfire allows you to exclude alien factions from your game (retaining other additions and improvements included in the expansion) if you prefer.
peke: Stop being ridiculous, Alien Crossfire is hardly a crucial part of perfect SMAC-experience. Some extra factions (and faction editor) and features, big deal. They do add a bit a flavor after you've played original SMAC for ages but with or without SMAC is still easily the best in the Civilization-genre.
If you liked ANY of the Civ-games, you will love this one and it will be way better. With or without addons.
I see your point (SMAC is a fantastic game without SMAX), but let me ask this: What's the point of buying a GOG if you have to buy or pirate a complete edition elsewhere in order to experience all of the content released for that game?
There are already too many games on GOG missing content. Alpha Centauri must not become one of them.
Also, in this case, there's no good reason *not* to include the expansion: Both were developed by Firaxis and published by EA (should be no legal issues) and both were released in 1999 (should be no price-related issues).
Fuzzyfireball: We just got EA, I got an idea, let's bitch about their games.
What's the point of getting EA if we get inferior or incomplete versions of their games? I'm not paying EA for a lesser version than one I can buy or pirate elsewhere. DRM-free is nice and all, but if I'll be playing another version instead of the GOG version, then it doesn't serve much of a purpose, does it?
I have some sympathy for those that don't have the game and welcome the chance to own it with or without the expansion, but we must stand strong! Trust me: You'll want Alien Crossfire if you like Alpha Centauri. AC-or-Bust must prevail!