Mission Improbable is a singleplayer mod for Half-Life 2: Episode 2. In it, Gordon Freeman is tasked with re-activating a Resistance listening post. From there, things quickly escalate.

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Before reading on, please click here so that you can start your download! It's been a long journey to finish this project. With the first map being made and released back in 2009 and the second map being released in 2010, it has taken another 2 years for the project to be completely wrapped up.

Initially I intended to just create the final map and do some script and minor graphical upgrades to the previous levels, but while having a beer with Rick one day he suggested that he could help me out with some art to make the levels even more awesome.

Mission Improbable 1 - Broken floorMission Improbable 2 - Rebel base

"It'll only take like 2 months" he said "we'll make some new rocks and stuff, it'll be easy!" That was back in December. From then until now we've done almost complete rebuilds of the old levels, replaced almost all Half-Life 2 content with original art, and created 2 new levels as well! We have around 300 new textures being used in the mod, along with 300 new models.

Mission Improbable 3 - TunnelMission Improbable 3 - Shaft

It's a great feeling to finally be able to release Mission Improbable. It has been a lot of late nights and long hours to get it done, and we sincerely hope you'll enjoy playing it. In case your download hasn't finished quite yet, then you can take a look at the launch trailer below.


The download is STILL not done? Then check out this videoreview that Valvetime.net did! They reviewed a pre-release version of the mod, and awarded it an A-!


By now I hope the download is done. Again, we hope you like it, now we will go get some well-deserved rest!

Final stretch of development!

Final stretch of development!

News 7 comments

Mission Improbable is in the final stretch of development!

Another week passes, with lots of progress!

Another week passes, with lots of progress!

News 4 comments

A week of great progress, and a preliminary release date!

Making good progress!

Making good progress!

News 4 comments

The mod nears completion! A general update on the progress of the three maps and the new art.

Almost content complete!

Almost content complete!

News 13 comments

Mission Improbable is close to being content complete!

Mission Improbable Patch - Source SDK 2013

Mission Improbable Patch - Source SDK 2013

Patch 8 comments

This patch fixes most issues related to engine branch incompatibility and is designed to run using the latest "Beta" of Source SDK Base 2013 Singleplayer...

Mission Improbable Full version

Mission Improbable Full version

Full Version 38 comments

The full version of Mission Improbable, released in July 2012! A self-extracting .exe, all you need to do is run it and it will install the mod correctly...

Mission Improbable Part 2

Mission Improbable Part 2

Full Version 14 comments

Mission Improbable Part 2, released in May 2010. This version is outdated, but is still available.

Post comment Comments  (20 - 30 of 236)
EddAdrian
EddAdrian

nevermind i should've checked the comments before

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EddAdrian
EddAdrian

It starting to be really annoying so many mods not working and with problems i got the orange box last month on steam so i can play all the great mods, but surprise only few are working. this one also i enter the game white screen and then i hear the error sound and nothing happens..is there a solution at least?..

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Veilleur
Veilleur

I'm playing this mod today, and I can say : What a perfect mod ! Beautiful mapping, gameplay is very good. I very appreciate playing it ! Great work ;)

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Guest
Guest

I am a member but can't sign in (scattergun).

Anyhow, I had the same trouble mentioned - "Can't find background image material/console/startup_loading.vtf" - and corrected it by using the solution provided by dubigrasu. Replace all text in "gameinfo" in mimp folder with text provided by Pastebin.com link. Copy and paste entire page. It works!

It's a pleasure to play this great mod again!!

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Guest
Guest

i dont know where the actual mod file installs to, i download the missionimprobable application and hit install but i have no idea where it installs the file to? and it says i must restart steam for it to show up on the game list, so i restart steam and nothing happens. please help

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Icedwhisper
Icedwhisper

Its in your Steam\steamapps\sourcemods folder

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GamerStar111
GamerStar111

I installed it and tried playing it but for some reason an error came up said that it couldn't find a menu file, what is the solution to this problem?

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-Enstinck-
-Enstinck-

So i was browsing youtube and found this trailer, so i decided i wanted to try it out, so i downloaded it, and even got the song that plays during the trailer, I installed the game and everything but there's a problem, every time i load up the mod, it shows a white screen and after a few seconds, there's an error message saying "Can't find background image material/console/startup_loading.vtf" I don't know what to do, can somebody here explain to me what this is and what should i do to fix this problem i'm having.

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Excessive46
Excessive46

fixed it! should of read more comment below before posting lol thanks dubigrasu

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Excessive46
Excessive46

Hi seem to have a problem when launching mod it loads with a white screen for few seconds then crash's to desk top and get error message saying cant find background image/materials/console/startup_loading.vtf. Some help would be greatly appreciated thanks.

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Half-Life 2: Episode Two
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Highest Rated (8 agree) 10/10

It's like an Expansion Pack for HL2. And it's not one of those cheap Mods, this campaign is so good it could've been in the original game.

Oct 16 2010 by Sgt.AS

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