Question: ddlc how to install mods?
Answer: Find the desired mod and download it.
If it is a . zip or . ... 
Identify and open the DDLC folder. Once inside, look for a sub-folder named "game."
Paste the mod's "game" folder over the vanilla "game" folder. Press confirm to overwrite files when requested. ... 
Run the DDLC program and test if the mod works.