Land is given by the government in blocks of 2000 ac for homesteading. Each player get 8 cards of land . Request your water rights from the government after acquiring the land. One ac-ft of water is 1 ac of land covered to a depth of 1 ft. You originally will flood irrigate the land to irrigate it and this will require all the water you have.
Any future settlers can be farmers or city people.
Each city person represents 30,000 people and must buy 200 gal a day for 365 day a year of water rights to move to the city. 1 ac-ft is 325828 gals. Each city person needs 6720 ac-ft of water to live. They should buy the water from the farmers, but if farmers will not sell the water then they can buy it from the state which holds all the excess water in high flow years and can sell it to be stored in a reservoir for average flow years. If you rent water, each year you must pay money to the farmer for the water.