Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two featuring an unarmed player but plenty of violent mayhem.

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28 comments by Varsity on Jul 20th, 2009

PC gaming super-blog Rock, Paper, Shotgun loves R&D! In a new review Alec Meer praises the mod as "a seismic shift" away from the norm, telling readers that it is "as must-play as an HL2 mod gets":

R&D’s hook is that it’s essentially non-combative. Yep – you go without guns throughout (bar the ol’ Gravity jobbie, but hey, that’s more about construction than destruction here). Sure, you can tell an Antlion to claw someone to death or arrange to squash men with falling girders, but you’re definitely not Edward Pistolhands. It’s an environmental adventure game, taking the irregular physics and logic puzzles seen in HL2 itself and turning them into the game itself. Mazes, gravity, exploding microwaves and fire-retardant antlion carapaces all make an appearance – it’s very much a point’n’click adventure in an FPS engine.

If you still haven't played Research and Development, which requires Episode Two, download it now!

Update: Destructoid also has a very positive review.

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Research and Development (installer)

Research and Development (installer)

Jul 18, 2009 Full Version 52 comments

Updated 17 July 2009, fixed several issues & added a dynamic crosshair when using the keypads & lab buttons. Requires Episode Two.

Research and Development

Research and Development

Jul 17, 2009 Full Version 30 comments

Updated 17 July 2009, fixed several issues & added a dynamic crosshair when using the keypads & lab buttons. Requires Episode Two.

Post comment Comments  (30 - 40 of 772)
Jesko96
Jesko96 Jun 1 2014 says:

Hello
In this moment Youtube.com , i didn't need u to bring a zombie on the lift. In there is a glitch with the vent. U can jump on first fence and then it on vent. I guess u need it to repair this.

+1 vote     reply to comment
cchooked
cchooked May 26 2014 says:

That was SO much fun! Thanks for a great time!

+2 votes     reply to comment
Guest
Guest Apr 13 2014 says:

Make a sequel!

+4 votes     reply to comment
Jack_Hater
Jack_Hater Mar 13 2014 says:

Cant start the mod. Error message says "Can't find background image materials/console/startup_loading.vtf"

+2 votes     reply to comment
s12345
s12345 Mar 28 2014 replied:

fixed!
In mod's folder change gameinfo.txt to this:
Pastebin.com

+5 votes     reply to comment
Guest
Guest Apr 19 2014 replied:

works, thanks man

+2 votes     reply to comment
s12345
s12345 Mar 28 2014 replied:

I cant start it too.
:(

+1 vote     reply to comment
Guest
Guest Dec 26 2013 says:

This comment is currently awaiting admin approval, join now to view.

Gamer819
Gamer819 Dec 18 2013 says:

Outstanding Mod! Puzzle based action games are my favorite and you made a good game great. Thanks for you efforts and hard work here. You would get a 10 rating from me but alas, I'm too new.

+2 votes     reply to comment
Guest
Guest Aug 16 2013 says:

This comment is currently awaiting admin approval, join now to view.

sagesh
sagesh Aug 24 2013 replied:

Yes, you need Half-Life 2: Episode Two on Steam. Did you even read the description? "Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two featuring an unarmed player but plenty of violent mayhem."

+1 vote     reply to comment
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Half-Life 2: Episode Two Icon
Developed By
mbortolino
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Release Date
Released 2009
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9.6

1247 votes submitted.

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Highest Rated (13 agree) 10/10

Let me start by saying this was exactly what I was looking for when I began looking through the hl2 mods available here. For some reason I love any puzzle elements executed in the hl2 engine and enjoyed all the little puzzles you had to solve throughout the actual hl2 game itself and R&D pretty much mixes all those great moments into one sweet package.

Research & Development pretty much a perfect mod for any fps puzzle lovers and the only thing I can hope for now is a sequel :D

Feb 28 2011 by Akito8

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First Person Shooter
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