Minecraft wiki entry for Building_a_metropolis, associated text: Communist
People work not for themselves, but for the community.
Wealth is collected by the government from the citizens and is spread evenly among the population (For example, there are 16 citizens who, in total, mined 64 blocks of cobblestone. The government gives each citizen four blocks.)
The fruits of work should be kept in a national treasury and shall be distributed among the citizens when the need arises
If you want something, just say it and the admins may give it to you from the treasury (if possible).
Not allowed to get all the good stuff yourself, share it.
People must not be selfish and must work toward the greater good of the metropolis.
Works best in a world rich in resources to facilitate the even spread of commodities to the masses.