Your Naval Base is your secret fort. It has a fleet of ships that guards it all day and night, even when you are sleeping or not playing the game.
Other players can raid your base to steal Steel ⚙️ and make you lose XP. You can do the same to their bases. It is a continuous duel between fleets.
Your defensive fleet are the ships you place on a big 10×10 grid. These ships take up 17 squares in total:
You have 2 ways to organize your defensive fleet:
Steel is a super important resource you get by playing. You use it to buy upgrades for your base. But be careful: other players can steal it from you!
Imagine you have 800 Steel (Total) and your Vault can only fit 500.
Exposed Steel = 800 − 500 = 300 Steel at risk outside.
If someone attacks you completely successfully, they might steal up to 60 Steel (20% of the 300).
A Shield magically blocks an attack completely! The attacker cannot touch your base if you have a Shield turned on.
Whenever your base blocks an attack, 1 Shield breaks. You can hold up to __HSY_MAX_SHIELDS__ Shields stacked up at once.
You have 2 Shields activated and lots of Exposed Steel outside.
Someone tries to attack you → Shield pops up! → The attack bounces off → You lose 1 Shield, but you don't lose ANY Steel!
You are left with 1 Shield remaining safe and sound.
If you do get attacked, the game hugs your base with a completely free Grace Shield that lasts for __HSY_GRACE_HOURS__ full hours.
During that window nobody can attack you again. Use the breathing room to reorganize your defense, repair upgrades and move resources into the Vault.
A Raid is a surprise attack against the base of a player who is offline. You target their defensive fleet while they cannot intervene in real time.
If a player attacks you, you have 72 hours to strike back directly at their base. It is your right of revenge.
«CaptainBoss» raided 400 Steel from your base.
You wait for them to go offline and counter-strike. If you sink 3 or more ships: you recover Steel and gain extra XP.
If you fail and sink zero ships: you lose 50 XP. Aim carefully.
On the Upgrades tab you can invest your Steel to strengthen your base. Upgrades require maintenance: they wear down over time and with incoming attacks. If Integrity hits 0%, the upgrade drops one level automatically.
Shipyard upgrades are not permanent. Each has an Integrity bar (0-100%) that reduces with use and incoming attacks.
When the integrity reaches 0%, the upgrade automatically drops one level and the bar resets to 100%.
For the first 3 days away, your base behaves normally: it can be raided up to 3 times per day as usual.
From day 4 to 7, your base enters rest mode: it can only be raided once per day.
From day 8 to 14, your base enters full protection: nobody can attack you.
After 15 days, your base stays permanently shielded until you log in again.
When you come back, you receive a 24-hour Welcome Shield so you can reorganize your defenses without pressure.
Your exposed Steel is 2,000 − 500 = 1,500 vulnerable Steel.
Partial attacker success (1-2 ships sunk): they take 10% of exposed Steel = 150 Steel.
Great success (3-4 ships sunk): they take 20% = 300 Steel.
Titanic destruction (5+ ships sunk): they take 35% = 525 Steel.
💡 If you upgrade your Vault, you keep more Steel protected and drastically reduce what can be stolen.
No. The system caps raids on a single base at 3 per day. Between each one you also receive a Grace Shield that protects you for several hours.
Practically yes. With no exposed Steel, you don't show up in raid target searches: attackers prioritize bases with resources sitting out in the open.
No. From level 3 onward, upgrades wear down with use and incoming attacks. If Integrity hits 0% without being repaired, the upgrade drops a level and you lose part of your investment. Repair them regularly with Steel.
Once an attacker sees where your ships were hit, they remember the exact positions. Reshuffle your defensive fleet layout regularly to avoid predictable patterns.
Hoarding exposed Steel turns you into an attractive target. Reinvest quickly into Shipyard upgrades: spent Steel becomes permanent and nobody can steal it.
A single active Shield blocks a full raid and nullifies all damage. Keep at least one available at all times: play Blitz daily to earn them without spending FleetCoins.
Placing your ships flush against the corners and edges of the board cuts down the adjacent cells an attacker can use to land nearby shots. Edges are your best defensive ally.
Don't rush a revenge in the heat of the moment. Wait until the attacker goes offline and then strike back: a successful revenge recovers Steel and adds extra XP without using your 5 daily raids.
When you play competitive PvP matches, some of your ships may end up damaged after a loss.
You're at Command rank and lose a PvP match in which your Battleship (4 cells), one Cruiser (3) and one Destroyer (2) get damaged.
Base cost: 25 + 15 + 8 = 48 Steel. With the ×1.5 Command multiplier: 72 Steel to return to the PvP queue.
Pro tip: Protect the 4-cell ship in particular — repairing it is the most expensive. If you string together losses, the repair costs stack up quickly.