Uploaded August 2025 | Updated September 2026, 2 weeks ago
Missing Information: moddb.com/mods/missing-information
Missing Information - Source 2013 Port: moddb.com/mods/missing-information-source-2013-port
For context:
Missing Information is one of the earliest Half-Life 2 Beta-themed mods. Its last version available on ModDB, is from 2011 and runs on the Source SDK Base 2007. The mod was scheduled for release on Steam in 2019, but Valve denied its release due to the use of leaked content. Nothing else has been released for the mod since then.
My goal is to port the mod to the Source SDK Base 2013 singleplayer. I plan to release the code as open source once the project is finished.
DISCLAIMER:
I am not affiliated with the original development team, and i do not own any Missing Information assets. I'm only doing this for preservation purposes, and for fun.
Missing Information: moddb.com/mods/missing-information
Missing Information - Source 2013 Port: moddb.com/mods/missing-information-source-2013-port
For context:
Missing Information is one of the earliest Half-Life 2 Beta-themed mods. Its last version available on ModDB, is from 2011 and runs on the Source SDK Base 2007. The mod was scheduled for release on Steam in 2019, but Valve denied its release due to the use of leaked content. Nothing else has been released for the mod since then.
My goal is to port the mod to the Source SDK Base 2013 singleplayer. I plan to release the code as open source once the project is finished.
DISCLAIMER:
I am not affiliated with the original development team, and i do not own any Missing Information assets. I'm only doing this for preservation purposes, and for fun.










![[TUTORIAL] How to add a new weapon to your Source SDK Base 2013 Singleplayer mod
Of course, if you dont have Visual Studio and everything set up to make a source mod, please watch @TheMaster974 s tutorials first: https://youtu.be/Vbs2RDUzUBM?list=PL8tDEPB6h7Lk0YtRtt4k1h_Thgj1ZA2dX
Very basic tutorial on how to add a new weapon to your source singleplayer mod by using an existing weapon. This is NOT a tutorial on how to make complex custom weapons (like a laser gun, for example).
I plan to make a tutorial on how to add new ammo types to your mod in the future. [TUTORIAL] How to add a new weapon to your Source SDK Base 2013 Singleplayer mod](https://i.ytimg.com/vi/iKjZbr4cVLM/mqdefault.jpg)