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  (190 - 200 of 229)
jo291 Oct 9 2010 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 replied:

restart steam.

+2 votes     reply to comment
kokis5 Sep 24 2010 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 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
eatleadsukka Sep 6 2010 says:

Just finished the mod. And do you know what? Do you? You do? Well, it was flat out, AMAZING. AWESOME mapping, AWESOME puzzles, and, a truly, AWESOME game, all in one, PERIOD!!!

+3 votes     reply to comment
Urby Sep 5 2010 says:

We need more mods like this and less of the zombie horror mod bullsh*t that EVERYONE is making.

This was immense. The combat, the music, the mapping, everything about this is just right. Definitely need to play the next part. :)

+4 votes     reply to comment
-:{Nachoman}:- Aug 23 2010 says:

This mod is awesome, 1 word to describe it. But i would say only 1 thing to make it a little better. in part 2 when you go in the headcrab canister and you crash, in that moment you should lose some health, like leave on 60 or 50. Letting that behind, this mod is perfect. I love it. And the dead poison maked me say LOL. (sorry if i said something wrong, english its not my native language)

+1 vote     reply to comment
Sittin_on_tha_toilet Aug 11 2010 says:

great mapping! i loved both parts =D will part 3 be bigger than part 1 and 2?

+1 vote     reply to comment
Alfierulz Aug 3 2010 says:

I cannot WAIT for part 3! I just finished completed parts 1 and 2. I really hope you get part 3 released.

Your style of maps are so creative, and there have been some generic parts (RPG on top of a lighthouse anyone? :P). And the first part where you almost backtrack yourself all the way is very clever.

Great series of maps, will recommend to friends!

+1 vote     reply to comment
kokis5 Jul 26 2010 says:

whe nis chapter 3 ?

+1 vote     reply to comment
insta Creator
insta Aug 2 2010 replied:

Don't know when exactly, but I'm working on it :)

+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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