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Story

The HL Invasion story starts at the end of Half-Life. Remember, you were in a train with the strange G-man … Fortunately, scientists hidden in a subsidiary laboratory with Black Mesa manage to repatriate you there with a space probe, in which you jumped just before the G-man kills you.

Once awoken, you discover this secret laboratory that the government forces haven’t discovered yet. You are watching a teleportation experience, when suddenly overtrained marines invade this hiding place … From this moment, you’ll never be alone … This new trip will lead you into subsidiary areas with Black Mesa where you’ll get more revelations about the government objectives and the world of Xen …

Features
  • 44 maps : 5 levels of about 10 maps each.
  • 16 weapons, including 12 new (infrared gun, flame thrower, sniper rifle)
  • Two new human enemies ( rocket launcher soldier and sniper ) and two new alien monsters.
  • A tank that you can drive and make its turret rotate independantly from the chassis.
  • A high definition bullet impact system, and particles blowing up from the walls on impact.
  • An entirely renewed protective suit, with a member-per-member damage management, and the possibility to stock batteries and medkits for subsequent use.
  • Several gameplay innovations such as digitpads use, or several kinds of ammo for the rocket launcher.
  • Subtitles available in French, English, Spanish and German.
Basic Details
  • Title: Half-Life Invasion
  • File Name: hl1-sp-invasion.7z
  • Original File Names: invasion_full.exe, invasion_patch1.1.exe
  • Size : 59.8Mb
  • Author: Invasion Team
  • Date Released: 05 August 2003
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Walkthrough

A walkthrough for this mod is available. It is in PDF format. You may be able to open this directly in your browser, depending on which one you use and its version or alternatively you can download the free Adobe Acrobat Reader

Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half Life 1, 2 and 3
Reader Recommendations
18 recommendations, average score: 4.56 (out of 5), standard deviation: 1.02
Broken Link?

Please email me about a broken link and I will do my best to repair it as soon as possible - thank you.

Total Downloads

Please note: These statistics are valid from December 2010

  • 65
    Overall
  • 1
    Today
  • 4
    Last 7 days
  • 30
    Last 30 days
  • 65
    365 days
Published

2nd April 2006

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Mod not working?
An update by Valve to some Source engines has caused a number of mods to stop working properly and give errors. Please visit my Get Mods Working post for more details.
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209 Comments
  1. Darth Marsden

    11th April 2009

    Actually, just had a thought. It’s not something to do with the transparency dll files, is it?

  2. key codes do not work. used the numeric keypad with numlock on or off. tried with “use key” on and with “S” on ; no help. also how do I reduce the size of the man; he occupies 25% of the screen. this mod is good but buggy.

  3. I loaded the patch into INVASION and then the mod would not load ( gets me back to the desktop). The wizard seems to want the patch to load into
    INVASION. help please. I am using standard half-life (not STEAM)

  4. Actually playing this mod on a won HL1 Version. Installed the mod than the 1.1 patch. In that order. No problems and no bugs so far and im at the end of the tank-section.

  5. how do I put the subtitles? help me! :S

  6. Awesome mod. One of the best mods for halflife.

  7. Personal Favourite

    Hard as hell, but really outstanding!

  8. TheUnbeholden

    28th January 2012

    arg this is tough… just figured out how to cheat :)

    ReplyEdited at 12:35 AM, 28th January 2012
  9. TheUnbeholden

    28th January 2012

    Play It Later

    I was very on the fence about this mod, while it is really good mod, there are a few problems.
    Lets shower the praise first, the level design is great. New areas galore. I liked the locations, the larger open areas and the crawl in vents with a lighter… the cloaked assassins, the new weapons.
    And it has a very good game length… and new models for all the original guns except for the satchel. You can carry medkits/batteries for later use.
    It has subtitles translated for 4 different languages.
    I also liked the fact that enemy snipers are quite deadly.

    One of the new weapons (the electro minigun plain sucks, it needs more damage, a larger clipsize and why not just give it bullets for godsake… it would have been great!)
    One of the monsters are annoying (that floating islave eye that homes in on you)

    On the camera only level where you have to avoid them, espionage is a great idea that I’ve only seen once in a different HL mod but it was very short and easy, here its done well and lasts about 15 minutes, you have to move very carefully in the right path past cameras. If you screw up they spawns grunts, you can see that they spawn out of thin air though which is a lame move to be honest.

    You have to fight the helicopters and I can’t remember the last time I played a half-life game or mod where you are forced to fight them.

    The difficulty is really high, for some reason the grunts have perfect reaction time that is godly and all weapons do beefed up damage, while I’m fine with that.. the problem is you take the increased damage to which totally throws the difficulty out of whack.
    I had to play on easy which makes me feel ashamed.
    and those new rocket grunts are really bullet resistant for some reason… -_-
    For contrast the part in the tank was really easy.
    Theres also one ridiculously difficult puzzle which requires random button pressing.
    HL is a great game, they should have kept the damage values the same instead of screwing things up. To make matters worse headshots still don’t kill unless your using the larger caliber pistols/sniper.

    The ending was pretty good, I recommend this for people who are really good at shooters in general (as long as they play on easy mode) I also recommend it for anyone who’s ok about using god mode (type testmode first before typing god or noclip).

    ReplyEdited at 12:37 AM, 28th January 2012
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