In the latest post-release beta version 5.4.00, we have added a new line for the MOD text file.
Required DLC=<name of the required DLC>
This specifies the DLC that this MOD requires. If the required DLC is not available, the game will refuse to load the MOD.
The name of the required DLC can be:
Subsidiary DLC
City Economic Simulation DLC
Digital Age DLC
Example:
[MOD]
Title=My Capitalism Lab MOD
Version=2.5
Description=This is my first MOD for Capitalism Lab
Author=Capitalism Person
Add Seaport Product=Steel
Add Seaport Product=Plastic
Maximum Product Price=50000
Required DLC=Subsidiary DLC
Required DLC=Digital Age DLC