World of Sea Battle is a free-to-play open-world naval MMO (Age of Sail) by Bytex, available on PC (Steam), iOS and Android. It does not operate a public gift/promo code system the way many mobile games do; instead it uses a referral / "Friend ID" mechanic entered during account creation, plus automatic level-up rewards. As of July 2026, no reputable source lists any official, redeemable gift or promo codes.
How to redeem codes
- World of Sea Battle has no official promo/gift code redemption system, so there is no code to redeem in the usual sense.
- What exists is a referral system: create a NEW account and, during the initial character/account creation screen, look for the 'Friend ID' (invite code) field.
- Enter a friend's numeric referral ID (for example a community-shared ID such as 300758629 for EU) in that field before finishing registration.
- Finish creating the account to receive the new-player referral bonus (typically a few days of Captain's Seal and bonus ship slots).
- Reach level 10 to unlock the additional automatic reward (extra Captain's Seal days and Battle Marks).
- For anything advertised as an official 'code,' verify it first via the game's official Discord or website before trusting third-party lists.
There is no public promo/gift code system in World of Sea Battle. The only 'codes' are player referral / Friend IDs, which must be entered in the 'Friend ID' field during initial account creation (not in an in-game redeem box) and only benefit brand-new accounts. Some third-party sites reference a 'Redeem Code' menu, but no official redeemable promo codes are published, so treat any listed 'code' as an unofficial referral ID.
Why most third-party code lists are unreliable
World of Sea Battle is a niche MMO with no official code portal or regularly published promo codes. The 'codes' circulating on aggregator sites and Steam guides are actually player referral IDs (Friend IDs) that only work at account creation and vary by server region (EU/NA). Aggregator pages frequently confuse this game with World of Warships (a different title with a real bonus-code system), so their 'code' lists are often inaccurate or copied. Because referral IDs are user-generated and server-specific, they cannot be verified as official rewards and may stop working at any time.
Troubleshooting
Expired code: Referral/Friend IDs don't truly 'expire,' but they only work during new-account creation. If a code doesn't apply, you likely tried to use it on an existing account or after registration was completed — start a fresh account and enter it in the 'Friend ID' field first.
Wrong region: Friend IDs are tied to a specific server (e.g., EU vs NA1). A code for EU will not work when creating a character on a North American server. Use an ID that matches the exact server you are joining.
Already redeemed: A referral bonus can only be claimed once per new account. If it shows as already used, that account has already consumed its one-time new-player reward — you cannot re-enter another Friend ID.
Level requirement: The larger bonus (7 days Captain's Seal + Battle Marks) unlocks automatically at level 10. If you haven't received it, keep playing until you reach level 10; it is not entered manually.
Account not eligible: Referral rewards only apply to brand-new accounts. Existing or previously-leveled accounts are not eligible, and there is no official promo code to grant these rewards to established players.
FAQ
Does World of Sea Battle have gift or promo codes?
Not in the traditional sense. There is no official public promo/gift code system. The only 'codes' are player referral / Friend IDs entered at account creation, which give new-player bonuses like a few days of Captain's Seal and extra ship slots.
Where do I enter a code?
During the initial account/character creation, in the 'Friend ID' (invite code) field — not in an in-game redeem box. There is no reliable official redeem menu for promo codes.
Why do other sites list 'codes' for this game?
Many aggregator lists confuse World of Sea Battle with World of Warships (which does have real bonus codes), or they simply republish player referral IDs as if they were official promo codes. Treat these lists with skepticism.
What's the safest way to find real rewards or any future codes?
Check the game's official channels — the official website (worldofseabattle.com) and the official Discord — before trusting third-party code lists. Referral IDs are best obtained directly from a friend or the official community so they match your server.
Official sources
- Official World of Sea Battle website
- World of Sea Battle on Steam (official store & community)
- Steam Community Guide: Referral Codes & New Player Rewards (2026)
- Steam Discussion: NA1 Invitation code thread
- World of Sea Battle Interactive Map — Friend code page
Last checked Jul 11, 2026. We only list codes traceable to an official source or verified in-game.