(MOHAA) typically refers to finding the CD key required to install the physical disc version or redeem the game on modern platforms. How to Find Your Serial Number Physical CD Version
If you own the original physical discs but have lost your key, there is no official "recovery tool" from the original developer (2015, Inc.) or publisher (EA).
: Many modern systems crash at launch due to OpenGL issues. Download the glDirect utility or a similar OpenGL-to-DirectX wrapper and place the .dll files in the game's main folder. medal+of+honor+allied+assault+cd+serial+number+link
If you own the original retail discs but your serial number is faded or lost, or if you are running into errors on modern PCs, use these steps:
So install the game, load up the Omaha Beach level, and experience why this title earned its Medal of Honor. And this time, maybe write the CD key down somewhere safe—just in case you’re reinstalling it again in 2046. (MOHAA) typically refers to finding the CD key
Even if a key works for installation, multiplayer (via community-driven revival servers like or OpenMoHAA ) may reject it if the key is detected as blocked or duplicated.
The easiest way to find your CD serial number is to check the game packaging or documentation. If you've misplaced these materials, don't worry - there are still ways to retrieve your serial number. Here are a few methods: Download the glDirect utility or a similar OpenGL-to-DirectX
: A CD key is an official code that allows you to activate and download the game on modern platforms like the Physical Installation
If you manage to install the game using your old CD and key, you will likely encounter a "buffer overrun" error or a "GLW_StartOpenGL" crash. To fix this: Ensure you are on version 1.11.
Double-check letters that look like numbers (e.g., O vs. 0 , I vs. 1 , B vs. 8 ).