Otto

Otto's contracts were rebalanced as part of the 2013 Game Update. The contracts were again rebalanced with the 2017 Game Update.

Contract list
The contracts were rebalanced with the 2017 Game Update We will re-edit the contract list ASAP, as the requirements and rewards might be wrong.

Train sets rewarded
Otto gives the following train set as a reward for completing his contracts. The number before the name of the set is the contract number that awards the final piece of the set.