Trade the Diplomacy cards from the Peace With Wolves expansion to benefit from other Clans' technologies. Alliances make everyone stronger but do not forget betrayal is one-sided.
This expansion also contains a new game mode: the Alliance mode for 2-3 players.

€”description from the publisher

Peace With Wolves includes a set of Diplomacy cards for all clans to start with. These will be traded and bartered with other players for advantage. Trading all of your cards may result in great power but it can also open up a tremendous weakness.

Steamwatchers can handle up to 5 players normally but at lower player counts this expansion facilitates an Ally mode for each of the clans in the game. In this mode each player at the table controls two Clans. This provides a unique opportunity for a crowded map at a not-so-crowded table. All ally cards have an alternate side for increased variability.

This expansion also includes new Scenario and Archon cards for the main game.