====== Crystal ======

Crystal (also referred to as Kris), is one of the three [[Resources|resources]] in [[pr0game]] and is mined in the [[kristallmine|Crystal Mine]].

===== Usage =====

Crystal is required for the construction of all [[buildings|buildings]], [[ships|ships]], [[defense|defensive structures]] (except for [[metallspeicher|Metal Storage]] and Rocket Launchers) as well as most projects in [[research|research]]. Especially later in the game, crystal becomes increasingly important, as particularly in the field of [[research|research]], a lot of crystal is required.

===== Mining and Production =====

Crystal can be mined by the [[kristallmine|Crystal Mine]], but even without a mine, a base amount of crystal is produced on every planet (20 units per hour in standard [[en:universum|Universe]]).

===== Trade =====

Since there is rarely a surplus of crystal, the demand is correspondingly higher than for [[metal|metal]]. It is usually traded as follows:

Metal:Crystal:Deuterium = 3:1:1 or 3:0.5:1. Rates in between these values are also common.

===== Crystal Shortage =====

Due to the high crystal costs in the later stages of the game, a crystal shortage often occurs, which leads to crystal being in higher demand in a [[en:universum|universe]] than other resources and is offered less frequently.

==== Causes ====

=== Special Buildings ===

Higher [[Level|building levels]], the [[Research Lab|Research Laboratory]], and more advanced [[buildings|buildings]] such as the [[terraformer|Terraformer]] or [[mondbasis|Moon Bases]] require more crystal than [[metal|metal]].

=== Graviton Research ===

The Graviton Research, which is essential for the construction of the Death star, requires a significant amount of crystal, which can lead to a shortage for players focusing on this research.