Knight Online
Knight Online error codes and fixes, OTP and account problems, ban lists and ban appeal guides.
SteamKO has no separate sign-up form: you play with your Steam account. Get Knight Online on Steam, verify your phone number by SMS code on first launch, then pick the server and create your character.
Find 154 readable character names from the October 4, 2026 Destan ban footage, the in-game notice explained, and the earlier ban list.
Trade and the market need SMS approval (5 NPoint) or premium on your account. Since October 2026 you have to add a mobile number to your account before SMS approval.
The most common snag in phone verification is waiting for a code: it's on the screen, and you text "NTTGame code" to 5564 from your own phone within 5 minutes.
New server registration and SMS approval for trade now need a verified mobile number on your account. You add it on the NTTGame portal under Overview > Cell Phone, and the first one is free.
In-game item, merchant/trade, upgrade, premium/Genie and skill warnings in the game's own wording, with links to the related guides.
The game's login, account, connection, launcher and security messages in their exact wording, with links to guides for errors that have a detailed fix.
The three account blocks on the Steam version: the 2099-12-31 website ban, Account Creation Abuse on new accounts and On Hold after a chargeback, with the official route for each and how to avoid them.
Startup symptoms of the Steam version in a table (cause and fix), why closing after a patch is normal according to NTTGame, a step-by-step fix, antivirus alerts, Steam Deck and a Windows 11 FPS note.
The Steam version's login error codes in one table: exact message, meaning and fix; the -8 block, -95 VPN, -99 Steam info, server-side (0) and (255), and a second account on the same network.
The steps of the Steam version's mandatory phone authentication, the 10-minute code and 3-try rule, verification error messages, foreign number problems and how it differs from OTP on the Turkish servers.
New Connection Detected (-18) is the check Steam Knight Online asks for when you log in from a connection it has not seen. Sign in to the NTTGame site with Steam, open Game Service, enter the captcha, confirm the code sent to your email and restart the game. 3 tries a day.
