The Development Project

is a Half-Life 2 modification purely made out of manipulated
Dev textures as a project for those that enjoy the simplicity of the original measuring textures created by valve scattered throughout the map but also enjoy all the effects, adventures and creativity of regular mods.

We are also trying to achieve the idea of mini-mods at the moment of which small detailed mods are created using the TDP content of improved dev textures through materials, models and maps but with a good amount of focus on gameplay for the players enjoyment.


TDP has development into an online multiplayer mod of many gameplay types in the making after coming to a conclusion that most mods of half-life have consisted of a great variety of online game-play types and options to play with friends over great amounts different.


Into possibly the slowest production of this modification now known as 'The Development Project', it's still under construction with a fully re-written storyline, new level design concepts and being pointed into the right direction of which will lead to a faster and better continuation of the project where more updates in the future will follow for those that are interested in this modification.

Meet the Team

Project Leader

Concept Artists

Level Designers

Graphic Designers

Sound Artists

Music Makers



Story Developer
Lord Kameron


Web Designer

Beta Testers
Joure, Dec, Mac, Ferret

Voice Actors
DukeRobear, Dr.Doozer, Shinobi-Kitten

Special Thanks To:

Darkness_Called, Bigglesworth, Discrate, Dec, Razura, Ferret, mtm0201, Happy^Camper, Cruckz.


You can keep up with the latest updates on TDP by going to the links below!

Like us on facebook for latest development!


Are you...

  • interested in working on a mod for half-life 2 using Dev textures?
  • willing to learn different areas of game development?
  • work as a team to achieve something serious that is new and original?
  • contribute as much as you can.

Or do you...

  • enjoy mapping with Dev textures?
  • want to expand an idea you have?
  • have the will to make something something else?

If the above points relate to you, then we want you to help contribute to The Development Project. Either in a different style, create something that the mod can use towards other dev styles or to even make something we already have created. Then you can send a Personal Message to Mapster on Moddb along with some current work you have COMPLETED yourself as well as what you would like to contribute with, and he will contact you asap with a response.


Favourited Comments:

Image RSS Feed Latest Screens
kill_counter Map testing Slaughter Room
Blog RSS Feed Post news Report abuse Latest News: Heavy 2013 update

8 comments by ~Mapster(WFc) on Jan 6th, 2013

Late happy new year moddb!

For the past two weeks I have had leave from my job, and using this time i have been able to work on TDP and get something pushing further towards release. Doing this, i have come up with a plan to create a multiplayer game instead of a single player allowing me to test this with my current beta testers making it more enjoyable to work on.

Click picture to view full version

So ever since the end of 2012, I have managed to port TDP to deathmatch using the episode 1 engine ( this also allows people that do not have episode 2 to play the game ), change the zombie models and give them new skins and code.

Click picture to view full version

Amongst new code I have incorporated 2 new entities so far consisting of a kill counter that no does not need templated npc's in hammer in order to count then and can be used in hammer each zombie kill and then used in triggers such as opening doors or locks for weaponry, the second entity is a zombie maker that will allow the mapper to variate between the different zombie textures for different areas such as the brown environment below.

Click picture to view full version

Above is an example picture of just half an hours worth of mapping using a single projected texture, a couple zombie models and textures. Very basic but imo it's very effective for a multiplayer game scene.

Slaughterhouse alpha gameplay - Mod DB

One more update to post to everyone after a video request is an alpha game video of slaughter houses that still requires a lot of changes towards it but it shows all the the above updates and a general idea of how the map design will look when using green dev textures.

Like us on facebook for latest development!

Enjoy, be safe, and have a happy new year moddb.

Media RSS Feed Latest Video
Downloads RSS Feed Latest Downloads


Nov 28, 2011 Wallpapers 2 comments

-Normal 4:3- 1280x1024 1280x960 1024x768 800x600 640x480 -Widescreen 16:9- 1680x1050 1280x800 1150x720 740x480

Basement Wallpapers

Basement Wallpapers

May 20, 2009 Wallpapers 14 comments

An old Wallpaper from the early stages of TDP for you to set to your desktop.

Post comment Comments  (40 - 50 of 137)
tymaxbeta Dec 27 2009 says:

Hrmm... Strange monsters, fighting out of a prison, strangely reminds me of an old game, maybe "The Suffering"... Anyhow Nice work this far, keep it up! I loved the suffering, and if you guys build a mod with a good atmosphere like that, well it will be great! It's coming nicely this far ;D

+4 votes     reply to comment
jjawinte Feb 10 2010 replied:

Good. I was beginning to think I was nearly alone in my appreciation for that game.

+2 votes     reply to comment
~Mapster(WFc) Creator
~Mapster(WFc) Dec 27 2009 replied:

Yes we will be making it with a few similarities to the suffering!
Good spotting! :)

+3 votes   reply to comment
Discrate Dec 26 2009 says:

Nice update mapster.

+1 vote     reply to comment
~Mapster(WFc) Creator
~Mapster(WFc) Dec 26 2009 replied:

Thanks Discrate :)

+2 votes   reply to comment
NoMan|Fredbob396 Dec 26 2009 says:

Yes! An update! I was worried it was dead. Keep up the good work!

+1 vote     reply to comment
~Mapster(WFc) Creator
~Mapster(WFc) Dec 26 2009 replied:

Yup, we are still moving along! :)

+1 vote   reply to comment
jjawinte Nov 6 2009 says:

I truly appreciate a fresh look and you've got a great one here.Keep up the great work and good luck!

+2 votes     reply to comment
~Mapster(WFc) Creator
~Mapster(WFc) Dec 28 2009 replied:

Thanks a lot, that's what we are aiming for :)

+1 vote   reply to comment
4ScoreSlappy Sep 17 2009 says:

sounds pretty frighting actually, keep up the good work :D

+1 vote     reply to comment
DELTΔ Sep 8 2009 says:

dead??? when can we next expect an update ???

+1 vote     reply to comment
~Mapster(WFc) Creator
~Mapster(WFc) Sep 9 2009 replied:

Not entirly sure, It's still been worked on just very slowly.
I'll do an update once i get Hammer Deluxe public on Moddb.

+1 vote   reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Half-Life 2: Episode One Icon
Send Message
Official Page
Release Date
Mod Watch
Track this mod
First Person Shooter
Embed Buttons

Promote The Development Project on your homepage or blog by selecting a button and using the embed code provided (more).

The Development Project
The Development Project
Last Update
2 years ago
469 members