You can enter the game by buying Eggs for TRX. These Eggs can then be Hatched into Tronkarps or Sold for TRX. If you choose to Hatch the Eggs that you bought, each Egg will give you one Tronkarp each. These Tronkarps will then produce an equivalent amount of Eggs over the next 24 hours that you then again can choose to either Hatch or Sell. If you choose to Sell your Eggs, you will receive TRX. The amount of TRX you receive depends on the market value of Eggs which is both visible in the buy section of the game and on the sell button itself. The market value of Eggs changes over time when people Buy, Sell and Hatch their Eggs.