Isle of Man is an exclusive expansion for Snowdonia: Deluxe Master Set by Tony Boydell.
In addition to a 35 card fix-pack for the Deluxe Master set (which is inside the Isle of Man box), it includes a deck of 29 scenario-specific cards as well as an extra train card. The box also contains the following wooden pieces:
3 Sun discs
3 Rain discs
3 Fog discs
1 Excavation rate marker
1 Lay Track rate marker
The wooden components are of the same style and quality as those included with the Deluxe Master Set.
Two instruction leaflets are included. One for the Isle of Man scenario and the other for two mini-expansions: the Twice as Nice expansion and The Hampi Stone Chariot promo card.
Note:
Isle of Man uses cards IM001 to IM029.
Twice as Nice uses the back of cards IM023 and IM024, which are also labeled IM023 and IM024, but bear the OP icon.
The Hampi Stone Chariot uses card EN105.