No audio

Article verified: October 2019

Symptom

No audio from Cities: Skylines

Cause

This problem is not caused by TM:PE. But seeing as you are here...

Nemo the fish app (Nahimic 2)
Voicemeeter
Sound settings in the game
Mods
Outdated drivers
Various sound apps bundled with your computer or motherboard.

Solutions

First check you don't have an app called Nahimic 2 or Voicemeeter running; they break audio in some Unity games; uninstall them.

Next, check the following:

Go in to game options and check sound settings
Check your mods, particularly Ambient Sounds Tuner
Note that while game is paused, audio stops

Other things:

Make sure sound drivers are up-to-date: Go in to system information, find the sound drivers and you can update drivers in there.
For Alienware machines, the problem is often the Alienware Sound Center app; open task manager and kill the sound center processes.
Asus Sonic Studio 3 can cause problems; try disabling it.

FMOD errors:

Windows: If you see an error like this in the log file:

FMOD failed to get driver capabilities ... Error initializing output device.

Go in to Sound Settings and right-click then disable any sound devices you don't use (leave only one and the game will use that).

Or you might see this:

FMOD failed to initialize ... Error creating hardware sound buffer.

That's caused by incompatible sample rate of your audio drivers. Try setting a different sample rate in Audio settings in Control Panel.

Mac / Linux: If you see a more verbose error, like this:

FMOD failed to get number of drivers ...Error enumerating the available driver list.List may be inconsistent due to a recent device addition or removal Instantiation of FMOD effect type 3 failed UnityEditor.EditorAssemblies:SetLoadedEditorAssemblies(Assembly[])

Try disabling all unused sound devices as described above, and if that doesn't work, try installing Pulse Audio.