Installation
Exit the game first, then follow these steps...
1. Subscribe and enable TM:PE
You can use TM:PE on the following game portals:
Steam (Windows / Mac / Linux):
GeForce Now:
EDIT: Apparently GeForce Now platform no longer allows mods to be used :(
You must launch the game from Steam within GF Now (use Steam procedure above)
If the mod doesn't download, Change Steam Download Region then Verify Integrity of Game Files
Other portals:
Downloads for manual installation:
Unfortunately, the following game portals don't allow code mods:
Console (Xbox, PS4, Switch) — no support for mods
Windows 10 Edition (Xbox live) - it's the Xbox version of the game
2. Unsubscribe incompatible mods
When TM:PE is first enabled, and also each time you launch Cities: Skylines app, it will scan for Incompatible Mods and display a warning if any are found.
If incompatible mods are found, you should unsubscribe them.
You can customize how this feature works in General Settings in Settings.
See this Workshop topic for details of incompatible mods
Removing mods which add roads or tracks must be done carefully: How to Remove Workshop Networks
See also: Recommended Mod Substitutions, Community database of mod incompatibilities
After unsubscribing any mods, always exit to desktop and then relaunch the game to ensure they are fully flushed from RAM.
You're now ready to start a game! Use the Toolbar to customize your roads.
FAQ
If I unsubscribe TM:PE will my save games break?
Does it reduce frame rate or cause lag?
Problems?
See: 👉 Troubleshooting