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
Blog RSS Feed Post news Report abuse Latest News: Mission Improbable released!

31 comments by insta on Jul 29th, 2012

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!

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Mission Improbable Full version

Mission Improbable Full version

Jul 29, 2012 Full Version 34 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

Jun 10, 2010 Full Version 14 comments

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 This version is outdated, but is still available.

Post comment Comments  (180 - 190 of 226)
Nightmare333 Dec 14 2010, 2:12am buried:


this mod is dead

-7 votes     reply to comment
Ghøst Dec 19 2010, 1:11am replied:

dont expect an answer dude of course its dead by the second time you posted no need to give your obviously claimed speech

+3 votes     reply to comment
Nightmare333 Dec 13 2010, 6:07am says:


0 votes     reply to comment
grabbie Dec 19 2010, 2:55pm replied:

Part 1 came out July 2009 while Part 2 came out June 2010. You can use that as a base to when Part 3 will come out. But remember many other factors can delay production.

This mod is great and let him take all the time he needs to finish it up.

+3 votes     reply to comment
Nightmare333 Dec 4 2010, 7:14am says:

When will part 3 come out?

-1 votes     reply to comment
firebird2009 Nov 5 2010, 6:35am says:

I just play part 1 and 2 and can not wait for part 3 ... great job so far !!! I hope Half life 2 es 3 will be like this !!! 5 stars !!

+3 votes     reply to comment
keywc Oct 23 2010, 10:21am says:

This is one of the best half life 2 mods !
This is a must have, like research and developement.
I just finished the part 2. And now, i'm waiting for the last part ! This mod is like i want episode 3. Enough weapons, secrets... DOWNLOAD IT NOW !

+2 votes     reply to comment
jo291 Oct 9 2010, 8:51pm says:

i have installed it into my source mods folder and restarted steam and nothing is happining.


+2 votes     reply to comment
keywc Oct 23 2010, 10:22am replied:

restart steam.

+2 votes     reply to comment
kokis5 Sep 24 2010, 8:18am says:

c mon i been waiting the whole summer :( to play part 3 and its end of september now whats taking so long?

+2 votes     reply to comment
True_Life Sep 12 2010, 3:08pm says:

Just finished Episode 1 & 2, The mapping is that of pure beauty, The game play is balanced, The worlds are beautiful, It flows together brilliantly, Cannot Wait for the next installment :D Keep up the great work!!!

+3 votes     reply to comment
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Released May 2010
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451 votes submitted.

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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, 12:41pm by Sgt.AS

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