How to Add Classic Marathon to Steam
Choose your preferred method to integrate this game into your Steam Library. The automated Desktop client is recommended for the fastest setup.
Get MX Desktop
Download and launch the official desktop client. It handles the backend configuration automatically.
Search and Add
Search for "Classic Marathon" inside the app and click the download button.
Play Instantly
The client will fetch required Lua configurations and decrypt keys, integrating it directly with your Steam.
Frequently Asked Questions
How to download Classic Marathon manifest?
To download Classic Marathon manifest, create a free account on ManifestDeX, search for the game, and click download to get the LUA file with decryption keys. The process takes less than a minute.
Is Classic Marathon decryption key available?
Yes, Classic Marathon has 5 verified depot decryption keys available on ManifestDeX. You can download them instantly.
What is Classic Marathon Steam App ID?
Classic Marathon Steam App ID is 2398450. You can use this ID to search for the game on ManifestDeX or Steam.
How do I use the downloaded LUA file?
After downloading the LUA file (2398450.lua) for Classic Marathon, you can use it with manifestdexcore to add the game to your library. Check our documentation for detailed instructions.