Online Verification Single-player Games
Mystery code workflow for single-player games that require online authorization
Overview
Some single-player games require online authorization during startup. This guide explains lot mystery codes, startup flow, and support notes.
Use Cases
Online authorization checks
Useful for single-player games that still require online authorization or Steam verification.
Offline and online switching
Use this flow when game behavior changes after the network state changes.
Authentication failure checks
Check Steam login state, software permission, proxy settings, and game version together.
What It Helps With
- Explain the difference between lot mystery codes and Denuvo mystery codes.
- Clarify scenarios where a code may be needed each time the game starts.
- Point users to examples, the CDK manual, and the flow for redeeming lot codes with a CDK.
Single-player games that require network authorization verification
Warn:
Refer to the Denuvo startup verification steps. The difference is that the mystery code starts with lot; when needed later, you can use the CDK to obtain lot startup codes without limit.
Examples: Company of Heroes 3, Mortal Kombat 1, V Rising, Microsoft Flight Simulator, 美女，请别影响我成仙 and more.
How to get a mystery code starting with lot: contact the author and donate to obtain a CDK first, then redeem it from the benefits section of the CDK user manual. The CDK can be used repeatedly and is currently only open to donation users.
Notes
- lot mystery codes are usually used for online verification single-player games.
- lot codes can only be redeemed after contacting the author and donating to obtain a CDK.
- Support scope can change with game and software versions.
Common Questions
Why does a single-player game require network access?
Some games check authorization during first launch, updates, or permission verification.
Is authentication failure always a manifest issue?
No. It can also be related to Steam login, network proxy, permission sync, or game version.