World of Sea Battle has an official redeem-code system, but codes are time-limited and rotate fast — many expire within days. We publish the reliable redemption method rather than stale code lists.
How to redeem
The game uses a Friend ID / referral system rather than public promo codes. Enter another player's Friend ID in the 'Friend ID' field during initial account creation to unlock the new-player referral bonus (reported as ~3 days of Captain's Seal, +40% XP/Gold, and 3 extra ship slots). This can only be entered once, at registration. A client-side 'Redeem Code' menu also exists (via avatar/settings) for any official promo codes the developer may issue.
Where real codes come from
Watch the official channels — in-game mail, the official Discord/social accounts and the official site (www.worldofseabattle.com/en). Ignore third-party "active code" lists — they go stale quickly.