I am going to be using Doki Doki Blue Skies[www.blueskiesmod.com] for this example. (I do recommend this mod as it has a lot of content to play through if the original game didn't satisfy you.)

[DISCLAIMER] Some mods may not be as simple as this. This Guide only covers mods that replace the scripts.rpa file in DDLC's installation. (As far as I know, most mods, if not all, follow this process.)

Step One: Download your chosen mod.
(This fancy lil' button.)








Once you have the mod downloaded, look for the scripts.rpa file. That's what we'll need to mod the game.


(It'll look like this)

Now, locate the installation of Doki Doki Literature Club that you wish to modify. Among the list of files, you should see one labeled 'Game'. Drag the scripts.rpa file into there, and if it asks you if you'd like to replace the already existing file under the same name, click yes. (If it doesn't make sure there isn't two. That'll probably break the game)

For those unaware on how to find the installation, go into your library, right click DDLC, 'manage' and then 'browse local files'. If you're using the version of DDLC from their website, just go to wherever you told it to install.



Now, run the game. If it loads correctly, you did it right!

Congratulations! You've successfully modded Doki Doki Literature Club!

Now, I've become more familiar with DDLC Modding, and need to add something here.

As you might have guessed, not all mods are as simple as this.

BUT! (this is a big but)

They follow a very similar process! You see, sometimes mods do more than just add dialogue. Sometimes, (Like in Monika After Story), they rework the game in more ways, requiring more than just the script to be replaced.

All you need to do is drag the contents of what ever is in the mod you download, lets say it's a folder called 'game', into the matching folder (game) in your installation of DDLC.