- –10% Ship cost
- +20% National sailors modifier
- +1 Diplomat
- −10% Core-creation cost
- +1 Possible advisor
- +15% Morale of navies
- −1 National unrest
- +2% Missionary strength vs. heretics
- −15% Diplomatic annexation cost
- +5% Discipline
Mann is a nation located between the islands of Great Britain and Ireland. It does not exist in 1444 start because it is a part of the Kingdom of England. It can be released by rebels, by the release nation button or through war.
As the Isle of Mann does not exist in 1444, selecting to play as this country puts the player in the rather unusual position to play as another nation, England, before switching to Mann. As such, the player, if one does not mind being a little dishonorable, has the ability to exploit England for the benefit of Mann. Without incrementing time, the player has the ability to either empower the small province nation or to strip away English power. Such actions include developing the province of Mann for monarch points or building a castle on the island. Alternatively, the player could sabotage England by breaking their alliance and insulting Portugal, disbanding the English army and navy, putting England in crippling debt (and making sure they can never recover by repeatedly taking and paying back loans), releasing other English vassals, either increasing autonomy in its provinces to hurt their income or decreasing autonomy to increase interest, disinheriting their heir and exploiting and upsetting their estates. More options can be taken if the player allows some time to pass before switching to the Isle of Mann
Once England has been sufficiently exploited to the player's content, be sure the last thing done is release and switch to the Isle of Mann. It is very important that this is done last, as, once released, it is not possible to legitimately switch to playing as Mann if not done so initially. Once the player has begun playing as the Isle of Mann, they should immediately begin preparing for an Independence war with England. If sufficiently dismantled, the player should easily have enough liberty desire to declare war on England the month the truce ends. Be sure to have at least one transport ship to ferry units to the British mainland. Mann has many options for alliances. Most, if not all of the other English vassals will be willing to join up and fight for independence, and it's worth noting that any that aren't allied with Mann when independence is declared will fight for the English side. Additionally, through diplomacy, France and Scotland could both make useful allies, although only one would likely be needed to beat back a crippled England. France is a good ally, as they are a powerful mainland nation (with no initial islands so you can keep them as an ally and still get the achievement), but may befriend Scotland, meaning some sneaky diplomacy must be done to take out Scotland and keep France as a friend. Alternatively, allying Scotland means that you can keep them from devouring England in between your truces with them, as, left unchecked, Scotland will take big bites out of England while Mann is stuck in a truce. However, if the player wishes to get the achievement for Mann, the Scots must be wiped off the map eventually, meaning they will be a less than permanent ally. Both France and Scotland may be allied at once if the player is lucky, although this may be a bit overkill for any immediate wars. Be sure that Mann is the one to declare war on England, and that puts Mann in the position to take the most territory for themselves and leave the rest to England for later.