Way back in the day, there was a leak of the non-finalized Half Life 2 source code. It contained many elements that were taken out of the retail game due to various reasons. Some things didn’t fit into the story, some weapons were unbalanced, other things introduced a ton of bugs, some things just weren’t fun. This leak was pulled apart by fans for quite a long time and many mod-makers wanted to roll the beta-content into something playable:
Welcome to Missing Information.
Less of a Point A to Point B mod, and more of a collection of unreleased tech demos, Missing Information is for the avid Half-Life fan only. Standard fare gamers and casual fans need not apply. If you’re just passing through the Half-Life universe and aren’t up to an arm’s deep romp into the bits that were cut from the final product: Move along, nothing to see here.
That said… even as an avid Half-Life Anonymous member, this mod was kind of a let down. It is cool to get to see enemies, weapons, and areas that didn’t make it into the final game, but at the end of the day, you realize that these things were taken out for a reason (Keep in mind, the build I was playing was a DEMO, not as the final release). Want to check out the scraps on the editing floor? This mod is for you.
[...] And the always lovely Tom (King of the Site) was playing Half-Life 2 mods: Dear Esther, The Radiator, Goldeneye Source, and Missing Information. [...]