Everything you could ever want... in a box.

The UHJC is basically a super cheap planetary improvement which gives the player enormous bonuses on said planet, HOWEVER, there is no restriction on other races using it, meaning that games remain at the same (or perhaps greater) level of challenge for people who play above "Fool" and "Subnormal" difficulties.

I use the UHJC when I want to play a game where techs are researched fast and you can wield massive armies and stupendous influence. Its not meant to cheat, but to make the game more "epic", if you will.

NOTE: Some users may wish to increase the economy bonus the UHJC creates, as it can be very expensive to maintain them early in the game (usually doubling the bonus works).