Planet M.U.L.E.

Leggite lost his speed bonus after the first couple rounds.

Store- One can to easily run into a commodity room changing your mule by accident.
          Having a more graphical representation of a room you have to enter would be better.

River- No time cost for running across or through the river/mountains. Takes away from time management      aspect of your turn.  ie leaving/entering store from proper side to maximize your development during your turn.

There is no spoilage of crystite and smithore over 50.   Oversight or change?

Spoilage needs to return for these two commodities.
There should be a price to pay for over production and hoarding of commodities. To much supply no demand and price falls. With no spoilage you can horde until price is what you want.
With spoilage it forces one to make decisions to sell or not. Returning balance to the other players by being able to buy.

New mechtron bonus instead of current one
  Steals energy from opponents (like packer does food) to recharge his batteries and create shortage
  Has energy production bonus

This will give production bonuses to all commodities and give players ability to cause a shortage and price increase for food and energy if they decide to attempt control of that commodity for profit. Of course players will be able to counter this tactic by over producing energy or food themselves.

Price of the next land auction doesn't decrease by half when the previous plot didn't sell
Supply and demand  NO demand for land then should fall. Also this helps maintain balance between players and keeps the land price from continuing to rise with each auction. Also keeps the thrill of out bidding your opponents in place for the next auction.

Thanks for your observations! We've corrected all things you found, but haven't changed the Mechtron ability. We need to test at least one 5 player game before we adjust the abilities.
All new additions will come in an update tomorrow.