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  (190 - 200 of 236)
Nightmare333
Nightmare333

(buried)

this mod is dead

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Ghøst
Ghøst

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

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Nightmare333
Nightmare333

WHEN WILL PART 3 COME OUT!!!!!

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grabbie
grabbie

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.

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Nightmare333
Nightmare333

When will part 3 come out?

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firebird2009
firebird2009

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 !!

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keywc
keywc

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 !

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jo291
jo291

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

help?

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keywc
keywc

restart steam.

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kokis5
kokis5

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

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True_Life
True_Life

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!!!

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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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