Experience

 is required to level up your Captain. Once enough Experience is gained to level up, you can choose Facets to increase your Captain's Skills.

Experience description
"An arch wherethrough gleams that untraveled world. "

Gaining Experience
Experience can be obtained simply through travelling through the High Wilderness. When you get close to a new spectacle, port or landmarks, it will appear on the map and you will gain Experience. If a location is however already named on the map, you not gain experience when approaching it. Each region will grant different amount of experience on discovering location. Discovering Ports wil grant you 512, 625, and 853 Experiences on the Reach, Albion, and Eleutheria respectively. Discovering other landmarks will grant you 57, 69, and 94 Experiences on the Reach, Albion, and Eleutheria respectively.

Fully completing Prospects will sometime give you Experiences, and some Sky-Beasts give you the option to gain Experience after defeat. There are also several storylets that reward you with Experience.

Interactions
Experience interactions

Levelling up
Your experience can be seen in the UI in the upper-right corner of the screen. How much more experience you need is shown as a black bar filling up with white, around the edge's of your Captain's portrait. Hovering over the portrait with the mouse will display your level, how much more Experience is needed to reach the next level, and how many character points you have left to spend on Facets.

The amount of experience points required to gain a level starts with 1000 Experience required to grow from level 1 to level 2. It then increases by 1000 for every level after that, so a further 2000 Experience is required to grow to level 3, and then another 3000 Experience to reach level 4.