In some game designs, technology and research are important. These games give each side a set of tech levels (or just tech for short), one for each type of unit. The tech level represents the technological knowledge needed to see, operate and build a type of unit. Tech levels never decrease, at least in the Xconq universe, and they can be increased by research and espionage.
There are several tech thresholds for a unit. First there is
tech-to-see
, below which you will not even be aware of the
existence of a unit (consider barbarians unable to see spy satellites
passing overhead). Then there is tech-to-use
, which you must
have in order to make the unit do any actions. The
tech-to-understand
and tech-on-acquisition
are points at
which your side can increase its tech level just by owning a unit, and
finally the tech-to-build
is what you must have to create new
units of the given type.