Steam Overlay for DOOM II with Simple Steps & Pictures (No longer works, link to one that does)

Overview

THIS GUIDE NO LONGER WORKS! TO GET OVERLAY ON DOOM 2, USE THIS GUIDE: https://steamcommunity.com/sharedfiles/filedetails/?id=1723293440This will explain with simple & easy to follow steps how to get the Steam overlay working for DOOM II using ZDoom or another source port.

Preface & Things You’ll Need

Hi, I hope this guide will get the Steam overlay for DOOM II working for you.

It’s fairly straight forward, and I try to “For Dummies” this guide as much as I can. Feel free to ask anymore questions you have, and let me know if I should add a step or something to a step.

The overlay will allow for screenshots, broadcasting and everything else the overlay gives. Launching with custom settings with the Steam launch options also becomes available.

Things you need:
Windows OS. (This guide is done with 7 but I imagine it’d work with 8/10 and probably XP.)
DOOM II on Steam. (Duh.)
ZDoom, or another source port. If you choose another, you should have some knowledge of it to troubleshoot any differences. (Although there shouldn’t be many.)
Notepad++, a file editing program.

Links to mentioned downloads: (Will be provided again in the guide when you need them.)
ZDoom: [link]
Note: As of 1/7/2017, ZDoom is no longer updated. Like I state in this guide, this should work with most sourceports. So you may want to consider another, like GZDoom[gzdoom.drdteam.org]. Source: [link]
Notepad++: [link]

Part 1: Installing a Source Port

Step 1: Download ZDoom

Note: As of 1/7/2017, ZDoom is no longer supported. Like I state in this guide, this should work with most sourceports. So you may want to consider another, like GZDoom[gzdoom.drdteam.org]. Source: [link]

This will most likely work with most source ports, but for this guide I will be using ZDoom for my examples. I assume as long as you can get to step 5 with your source port and have it launch through Steam, the rest of the guide will work.

Just click the Windows logo on [link]

Step 2: Unzip ZDoom

Unzip zdoom with whatever program you use (I use winrar), you should get a now unzipped folder.

Step 3: Rename “zdoom.exe” to “dosbox.exe”

In that unzipped folder, rename “zdoom.exe” to “dosbox.exe”

Step 4: Copy/Replace all ZDoom files into DOOM II’s base folder.

Copy the 4 files you recieved from ZDoom, and replace the dosbox.exe in there with your newly renamed one.

Step 5: Test to make sure ZDoom works, launch Doom II

You should now be able to launch DOOM II from Steam and it will launch ZDoom.

Part 2: Getting the Steam Overlay

Step 6: Download and install Notepad ++

You’re are about to edit a file called appinfo.vdf, and to do so you will need Notepad++

Download: [link]
Install NP++

Step 7: Locate appinfo.vdf

appinfo.vdf is usually in “C:Program Files (x86)Steamappcache”, but it will be where ever you installed Steam at.

Step 8: Open/Edit appinfo.vdf with Notepad++

Right click appinfo.vdf and edit it with NP++

Step 9: Open the “Find” menu in NP++

Step 10: Find the .bats we are going to change (2 total changes)

In the find menu, switch to the replace tab. One at a time, of course, find “doom2.bat” and “doom2 + mouse.bat” and replace both with “basedosbox.exe” without the quotes. (see pictures)
Note: I use “basedosbox.exe” to keep it the same format as Ultimate DOOM and Final DOOM.