|Cost to Build
The Sea Fortress is a level 4 unique building that you can only get with the Cities: Skylines Parklife DLC. To unlock it, you must achieve two things:
- Reach the Busy Town population milestone
- Have a Level 5 park area (Parklife DLC)
Once these requirements are met, you’ll be able to build the Sea Fortress from the level 4 unique buildings menu for ₡100,000.
It provides 150 entertainment value and produces 50 noise.
It is also one of the requirements for the Castle of Lord Chirpwick monument.
Building a Park Area
If you don’t have an existing park area yet, create one by going to Districts and Areas, and selecting Paint Park Area.
Paint over the terrain where you want your park to be, making sure there is at least one road connection adjacent to it.
Also, since you’ll need to upgrade this park to level 5, you’ll want to provide plenty of space for it.
Once you’ve marked out your area, go to Parks & Plazas, and click on the tab of your desired park type:
- City park
- Amusement park
- Nature reserve
Select the main gate of your chosen park type (either the regular size or small main gate will do), and place it along the road. This will automatically designate that area a level 1 park area of your chosen type.
Now, it’s time to upgrade your park to the highest level, which is 5.
Leveling Up Your Park Part 1: Increasing Entertainment
Leveling up your park area requires you to hit milestones in terms of total visitor count, and the entertainment value of your park.
Entertainment basically refers to the amount of features your park has. Each park building or decoration you place within your park adds to your total.
You unlock more park buildings and decorations as you level up. You may build several instances of particular buildings to accumulate enough entertainment points.
Decorations such as trees, benches, and flower beds also contribute to the entertainment value of your park, so add plenty!
Leveling Up Your Park Part 2: Getting More Visitors
So you’ve built a nice-looking park with plenty of features, but not a lot of people are visiting it.
Not only will this slow your unlock progress, but it can also leave your park unprofitable.
Here are a few things you can do:
Tip #1: Place Your Park in an Area with Plenty of Foot Traffic
It’s always a good idea to place your park areas near plenty of residential zoning.
For one thing, it will boost the land value in the nearby area and the happiness of those living there.
Secondly, if you place one main gate and one side gate on opposite sides of your park, some of your citizens may start using the park as a pedestrian shortcut, significantly boosting your visitor count.
Tip #2: Provide Plenty of Public Transport
Having public transportation options nearby, such as a bus stop, or a metro or monorail station, can also encourage more people to visit.
Of course, this isn’t a requirement.
But it does help a lot in unlocking the Sea Fortress.