If you’re building routes, fixing dependencies, or tracking down a missing asset in Trainz, KUIDs (Kade/Unity IDs) are the key. This post explains what KUIDs are, why they matter, and fast ways to search for them so your sessions and downloads run smoothly.
This requires testing. The wrong substitution will cause "Faulty Dependency" errors or graphical glitches. kuid search trainz
Right-click these unknown KUIDs and select to see if they are on the DLS. 2. Using the Trainz KUID Index (TKI) The wrong substitution will cause "Faulty Dependency" errors
| Challenge | Explanation | |-----------|-------------| | | Asset has been replaced by a newer version; original KUID no longer exists. | | Payware/Third-party only | KUID is not on DLS; must purchase or download from creator’s site. | | Missing version suffix | Searching for :1 may fail if the current version is :3 . | | Author ID changed | Some creators re-upload under new account; original KUID becomes orphaned. | | Case sensitivity | Not typically an issue, but some external databases treat KUIDs as case-sensitive strings. | | Faulty or corrupted assets | KUID exists but asset has errors preventing use. | Using the Trainz KUID Index (TKI) | Challenge
Every KUID follows a specific numerical format that tells the game exactly what the asset is and who made it [5, 11]. : The standard format [2].
If a KUID belongs to a payware creator (like Jointed Rail or K&L Trainz), you will never find it on free KUID indexes. If you see a KUID from author ID 37581 (Jointed Rail) and you did not buy that locomotive, your KUID search will fail. You must purchase the original product.