Pandora: First Contact is a sci-fi themed 4X strategy game that was created as a tribute to Sid Meier's Alpha Centauri.
Pro Upgrading is done well
Upgrading ones units and operations is quite fun and intelligently done. As new equipment is developed the user has the choice to bring their units in, in order to equip them with the new equipment. Not only is this intuitive but it adds to the strategy of the game as the player must decide who and what are worth upgrading.
Con Gameplay is too simple
Short of being a constant aggressor there is really no worthwhile way to win battles. While there are a few different victory conditions non of them really amount to anything as they will not be achieved unless dominating with ones military in the first place.