From the publisher's website:

Driven by their successes, the resistance has gained popular support and entire regions are in open rebellion.In a desperate attempt to stay in control, some government leaders are publically supporting the reforms demanded by the resistance. But allegiances are constantly shifting, and can be bought for the right price. The opportunity for intrigue and bluff has never been greater.The cost of failure couldn’t be higher.Even with talk of reformation, only one can survive. Reformation is an expansion to Coup, a copy of Coup is required to play.Reformation adds Allegiances – players are either in support of the government (Loyalists) or the resistance (Reformists). Reformation also includes the Inquisitor variant, and additional role cards to expand play up to 10 players.