As well as unlocking laws and policies that tune the way you govern your empire, the culture-fuelled civics tree also opens a separate range of units, districts and world wonders to those revealed by exploring the tech tree. On the Xbox 360 and PlayStation 3, it'll take about three. Finally, the iconic Civ tech tree is now effectively doubled by the inclusion of a “civics” tree. The “worker” unit had been around since the first Civ – and always a source of tedium in the late-game – but is now gone, with roads built automatically as you direct traders between cities, and other improvements completed by “builders” who disappear after a finite number of uses.

Research Planet Survey, one of the leaf tech at the center of the tech web. Also all-new is the way you’ll build a road network and deploy workers to cultivate the local landscape. open your eyes in tech tree its one of the first. You’ll have to take account of terrain and think hundreds of years ahead to the ways you want your cities to develop. The tech tree has been broken into two separate areas of research, scientific and cultural, and builders are now consumable units able to perform a limited number of tasks before perishing. Instead of building in the city centre (whether your barracks, market, library, temple, colosseum – the list is long), “districts” are now placed on the surrounding tiles. From this tumultuous time, four new factions arose.

Those left behind fell into a violent struggle over the quickly-diminishing resources on their barren home world. Most notably, the way cities are built and developed demands a layer of strategy previously absent. After the first wave of great colony ships departed Earth, the jubilation of humanity was short-lived.

Civilization revolution tech tree