In XCOM, what are the mechanics for expanding the base (excavating/building)?

In XCOM, what are the mechanics for expanding the base (excavating/building)? - White Concrete Building on Green Grass Field

Is construction serial or parallel? (In other words, can multiple building/excavations happen at once, or is it one at a time?) If it is serial, is there a way to control which happens first? Does number of engineers matter beyond the building requirements?



Best Answer

Parallel

You can build as many facilities and/or excavations under construction at the same time as you want, assuming you can afford them all of course. They will all be built at the same time and won't be any slower.




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