Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

I can’t tell you much about this mod except that it is supposed to be a leak. There are some levels from the E3 demonstration and plenty of levels I haven’t seen before.

I should have played every level and noted which screenshots are related to which level but to be honest I got bored.

Basic Details
  • Title: Lost Concept
  • File Name: hl2-sp-lost-concept-dev-4.rar
  • Size : 277.20Mb
  • Author: Unknown
  • Date Released: 10 October 2008
PlanetPhillip Download Servers

I have removed the download links at the request of the mod leader. This mod is still indevelopment and an updated releae will be made available. I apologies to the mod team because I was under the impression this mod was dead and therefore this was the only available download. I will update the post once a new file becomes available.

Installation Instructions
  • Copy the Lost Concept folder into your SourceMods folder.
  • Restart or start Steam.
  • Lost Concept should now be listed in your Library tab.
Playing Instructions

You will need to open each map manually

  • Open the console and type map .
  • A list of maps will now appear, select one.
  • Press enter/return or click the Submit button.
  • Play and Enjoy.
Screenshots

Click on the thumbnails below to open a 1024 pixel wide image.
WARNING: The screenshots may contain spoilers.

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3
Reader Recommendations
7 recommendations, average score: 2.14 (out of 5), standard deviation: 1.27
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Published

23rd May 2009

Categories

Half-Life 2 Single Player Mods and Maps

Tags
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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Phillip says MaybeAvoid It!Maybe?Play It LaterAvoid It!Avoid It!Think Twice
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17 Comments
  1. planetphillip

    23rd May 2009

    Phillip says Maybe

    As I said in the description I should have taken a more methodical approach to playing this mod but after I played after 10 maps I stopped and then played again at various times during the week. For that I apologize.

    Ideally I should have listed each map, with a brief description and some screeshots.

    Overall it’s a waste of time but there are a few nice levels worth playing and I’m pretty sure I didn’t play them all.

    The ones I enjoyed are: c17_test_new_fixed, e3_under_02, , proto_bridge and . The last being only for atmosphere. If it had sound effects and music it would be very scary.

    If you play this you willl need to load each map manually but remember it was never suppsoed to be relased in this form.

    Most of the maps I played didn’t even have any combat, so be warned.

    5 Words Or Less Review
    Too much like hard work!

    Reply
  2. Sortie

    23rd May 2009

    What is this? It looks like someone tried to fake a HL2 leak release or something. Much of the content isn’t Valve quality at all, I can easily tell its fake, but some of the maps are very much real leak maps, but changed in some mysterious ways, with new content that doesn’t look Valve-made at all. And all the broken textures? To be honest, it looks like a fake something. If you are interesting in leak-E3 material, I’d play Missing Information instead.

    Some of the mapping I haven’t seen before looks interesting though, but most looks like someone with a few weeks of Hammer experience tried to put something very quickly together. Screenshot 72 through 76 looks interesting though, they seem to have been made with some skill and present some interesting visuals, but who made them is the largest question, I don’t remember seeing these maps in any of the leak content I have seen.

    Reply
  3. Jasper

    23rd May 2009

    Avoid It! - revised

    Awful. A pile of rotting fish. Carp – think anagram – you have it; PARC.
    If you try this, you will become suicidal. I’m off to jump off a tall bridge.

    Reply
  4. Jasper

    23rd May 2009

    Caught me just before jumping! Went back and played every BSP, even those not listed in the map list.
    While I have not changed my mind overall, I did find map D2_PRISON_06_retail
    entertaining. A gem of an oasis in a desert of garbage.

    Reply
  5. Jasper

    23rd May 2009

    Sorry, forgot.
    Yes I did play your suggestions.

    Reply
  6. Gypsy Jim

    23rd May 2009

    I think this might be the first Zip file (From PP) that I’ve not managed to open with 7-Zip, does anyone have any (free) suggestions as to which file extractor I ought to be using instead…?

    Reply
  7. Gypsy Jim

    23rd May 2009

    Thanks Philip, tried Winrar & it said that nine of the files & headers were corrupt. guess that means I’ll have to re-download it from another server…..(Got it from Filecloud that time)

    Reply
  8. Anon-00023

    24th May 2009

    Avoid It!

    no. just. no.

    Reply
  9. bumtown

    24th May 2009

    Maybe?

    Hmm… I haven’t seen these models or maps before.

    I’m not even sure if they’ve been mentioned before.

    Reply
  10. 99d

    26th May 2009

    Play It Later

    @Sortie and everyone else-All of the maps conatined in this ‘mod’ come from the WC Mappack, which was released alongside the leak in 2003. It is a Huge file that contains all of Valves maps up to the leak , therefore they are maps that were originally made by valve, just never finished. So it is all 100% genuine, not a fake.If you doubt this, do a little research. Go to aperturegaming.com or talk to Team GabeN. Or you could email valve themselves, if youre feeling ambitious.The mod is obviously nowhere near finished, hence DEV4, DUMMIES!

    The unfinished maps are starting to look good and have great potential.

    Reply
  11. Jasper

    26th May 2009

    Avoid It!

    Twaddle, 99d is how your comment reads to me. Or are you having a laugh but I have not seen the joke yet?
    aperturegaming.com takes you to a page with another internet address which does not work.
    I could not find anything worthwhile at Team GabeN
    ‘The unfinished maps are starting to look good and have great potential.’ Since 2003! I’ll not hold my breath then.
    Besides ‘unfinished’, they have barely been started!
    On reflection, you must be joking, please say you are.

    Reply
  12. tundra_cool

    27th May 2009

    Avoid It!

    Hardly any work put into it. This is what happens with straight ports. And people say we didn’t put any work into Missing Information. Psh.

    Reply
  13. Phil

    27th May 2009

    Think Twice

    Looks to me very much a collection of works in progress — some of the maps look like scenes from the official game, but with bits missing.
    I played every map listed in MAPS * and really I think there are only two that are playable (street and bridge I think).
    The rest? not worth the effort.

    Reply
  14. 99d

    29th May 2009

    @Jasper

    The sites are down at the moment, apeturegaming is also moving. And you wouldn’t find anything at Team gaben’s site because you don’t have access to the required information.

    Reply
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