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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Mission Improbable 3 - Shaft Mission Improbable 3 - Tunnel Mission Improbable 2 - Rebel base

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!

3 years ago 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!

3 years ago News 4 comments

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

Making good progress!

Making good progress!

3 years ago 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!

3 years ago News 13 comments

Mission Improbable is close to being content complete!

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.
Mission Improbable Full version

Mission Improbable Full version

3 years ago Full Version 36 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

5 years ago Full Version 14 comments

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 This version is outdated, but is still available.

Post comment Comments  (30 - 40 of 229)
DBuilder Aug 7 2013 says:

I. . .uh. . .I


+2 votes     reply to comment
codefreak5 Sep 6 2013 replied:

I've got a solution. I posted it to the Steam Forums. The post is located here: Forums.steampowered.com

+2 votes     reply to comment
Clear_strelok Jun 28 2013 says:

So, I have just finished the last level after almost five hours and this is clearly the most impressive mod i've played since Black Mesa.

First, it is absolutely beautiful. I sometimes found it hard to believe that I was actually playing a source mod and the artistic direction honors the Half-Life atmosphere.

Then the level design is a lesson of fluidity and efficiency. The gameplay himself is not really original, but the puzzles are fun and simple, the gunfights are very well constructed and this is one of the very few mods where I never had to spend ten minutes wondering what the devs wanted me to do.

In fact, this campaign is so well built that it could easily have been part of the game on which it is based. We want more now!

+3 votes     reply to comment
frau223 Jul 14 2013 replied:

Right, I`m going to check this mod.

+3 votes     reply to comment
jambiman Jun 18 2013 says:

Hey, I just downloaded this again and I can't launch the mod :(

Every time I hit launch an error pops up saying "Can't find background image materials/console/startup_loading.vtf"

+3 votes     reply to comment
Capn_Courage Nov 16 2013 replied:

Same here, is there a fix for it?

+1 vote     reply to comment
Clear_strelok Jun 28 2013 replied:

Yeah, this issue occurs with a lot of mods since the Source Games files format update. Fortunately, this gentleman has found a solution: Steamcommunity.com

You just have to copy and paste the content of this page: Pastebin.com into a file named "gameinfo.txt". (This file is located in the main folder of the mod)

+5 votes     reply to comment
modz123 Nov 28 2013 replied:

those make no sense WHAT SO EVER and i dont even know if it works for pc!!

+1 vote     reply to comment
Shrektacular Oct 17 2013 replied:

The fix doesn't work for me :( I just get the same error

Edit: Never mind, for some reason it worked the second time I tried it.

Thanks for the solution! Best Half Life 2 mod, already played it before but want to play it again.

+1 vote     reply to comment
Guest Aug 8 2013 replied:

This comment is currently awaiting admin approval, join now to view.

snake959 Jun 24 2013 replied:

I get the same problem for many mods involving Episode 2

+1 vote     reply to comment
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Half-Life 2: Episode Two Icon
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Released 2010
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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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