Online Verification Single-player Games
Verification code workflow for single-player games that require online authorization
Overview
Some single-player games require online authorization during startup. This guide explains lot verification 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 verification codes and Denuvo verification codes.
- Clarify scenarios where a code may be needed each time the game starts.
- Point users to examples and the CDK manual when needed.
Single-player games that require network authorization verification
Warn:
Refer to the Denuvo startup verification steps. The difference is that the verification code starts with lot, and each time the game is played, it needs to be started through the code.
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 or generate the verification code starting with lot: see the CDK user manual benefits section. It can be used repeatedly and is currently only open to donate users.
Notes
- lot verification codes are usually used for online verification single-player games.
- Some features may require donation level or specific permissions.
- 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.