
Forts - High Seas
With a brand new water system, new campaign, weapons, ammo system, HUD and soundtrack, Forts - High Seas takes the classic Forts physics-based fun to the next level of building, battling and causing bubbles!
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Base game (1)
This is the base game required to play this DLC. Other expansions may also be required.
Multipacks (4)
DLCs (9)
About Forts - High Seas

Set sail on the United Navies’ battleships, carriers and dreadnoughts and combat the Pirate scourge in Forts’ second DLC. With a brand new water system, new campaign, weapons, ammo system, HUD and soundtrack, High Seas takes the classic Forts physics-based fun to the next level of building, battling and causing bubbles!
NEW CAMPAIGN

Five years have passed since famed scientist Professor Fred Capacitor disappeared mysteriously on the high seas. Now his son Max, who fights the battleships, carriers and dreadnoughts of the pirate horde as a captain in the United Navies, hears rumors of his father's fate, while on the hunt for a terrifying mega-weapon.
Features include:
- 18 missions with unique backgrounds
- Variety of mission types, such as:
- Enforcement - Ships vs ships combat
- Interdiction - Destroy enemy ships fleeing the area of operation
- Boarding action - Take control of an enemy structure
- Land vs Sea - Fort vs ship battle
- Carrier strike - Bomb the enemy with ship-launched jets - Hostile & dynamic environments
- Interactive graphic novel-style cutscenes
- A refined learning curve that teaches the player new features and unlocked weapons mission-by-mission.
- 20 skirmish/multiplayer maps.
- United Navies HUD
- New dynamic soundtrack
NEW ARMAMENTS

Energy Dome
- Creates protective energy shield against destructible projectiles.
- Build low to protect against aircraft dropped munitions.

Harpoon
- Fires Decoy ammo.
- Fires Control ammo.

Runway
- Launches Thunderbolt jets
- Launches Nighthawk jets

Hardpoint
- Upgradable to Deckgun
- Upgradable to Orbital Laser

Deckgun
- Fires high-explosive shells
- Upgradable to 2 & 3 barrelled versions*
- *Switch between spread & focus mode
- Requires Hardpoint

Orbital Laser
- Fires Orbital Laser Sweep ammo.
- Fires Orbital Laser Focus ammo.
- Upgradable with aim assist.
- Requires Hardpoint
AMMUNITION

Decoy
- The Squirrel. Lures and redirects enemy Swarm and Warheads.
- Fired by Harpoon.

Control
- Takes control of structures.
- Fired by Harpoon.

Thunderbolt
- Drops multiple explosive munitions.
- Launched from Runway

Nighthawk
- Drops high penetration, incendiary Paveway bomb.
- Launched from Runway

Orbital Laser: Sweep
- Laser beam moves across the target area.
- Fired by Orbital Laser

Orbital Laser: Focus
- Laser beam focuses on the target area.
- Fired by Orbital Laser.
WATER TECH
The classic proprietary physics engine Forts is known for has received a major upgrade with the addition of the new water system. Ships float with true buoyancy, listing to one side if off-balance. Any structure not connected to a reactor will sink to the ocean floor unless reconnected swiftly. The ocean surface features its own set of splash FX, water and bubbles particles, underwater explosions and sound effects. This tech opens up a whole new world of possibilities of gameplay and modding to an already very satisfying physics-based experience!
EXCLUSIVE HIGH SEAS FEATURES
United Navies HUD
New in-game United Navies HUD for your enjoyment.

High Seas Music
All-new soundtrack by Ella van Dyck, also available to purchase separately.

Game details
Game details
Languages
Audio & text: English
Text only: French, German, Spanish - Spain, Russian, Italian, Japanese, Korean, Polish, Portuguese - Portugal, Portuguese - Brazil, Simplified Chinese, Turkish, Hungarian
Features
Forts - High Seas price history
Lowest tracked price: CA$6.89 (Jul 7, 2026) · current best: CA$9.29 across 6 stores.
Forts - High Seas player count & reviews
77% positive reviews all-time · 0 peak players in the last 30 days.
Forts - High Seas — frequently asked questions
Where can I buy Forts - High Seas at the cheapest price?
Right now the cheapest offer for Forts - High Seas is CA$9.29 at Eneba. KingsPrice compares 7 offers from 6 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Forts - High Seas has ever been?
The lowest price KingsPrice has tracked for Forts - High Seas is CA$6.89 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Forts - High Seas?
Forts - High Seas peaked at 0 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.
Is it safe to buy a Forts - High Seas Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Forts - High Seas at a discount?
Create a free price alert on this page and KingsPrice will email you when Forts - High Seas drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *: Windows Vista, 7, 8, 10 or 11
- Processor: Pentium Dual-Core 2.7GHz
- Memory: 4 GB RAM
- Graphics: Intel HD Graphics 520
- DirectX: Version 9.0c
- Network: Broadband Internet connection
- Storage: 3 GB available space













