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 29 comments

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

Post comment Comments  (720 - 730 of 769)
RuffeDK
RuffeDK Jul 16 2009, 7:09pm says:

OK, that code to the gravity thing makes me sick! GET IT FIXED! Oterwise, nice mod.

+1 vote     reply to comment
Icedecknight
Icedecknight Jul 16 2009, 9:21pm replied:

Yeah it took me a very long time to figure it out but you did figure it out didn't you? If you did then there is nothing to fix.

+1 vote     reply to comment
alpha69a
alpha69a Jul 16 2009, 9:43pm replied:

i think he means how its almost impossible to hit the right buttons on the keypad.
unless of course i missed the point of the puzzle and the keypad is just a distraction?

+1 vote     reply to comment
Icedecknight
Icedecknight Jul 16 2009, 11:07pm replied:

ehh all they need to do is add a crosshair to make it easier.

+1 vote     reply to comment
Croco15
Croco15 Jul 17 2009, 12:17am replied:

Just type crosshair 1 into the console and problem fixed.

+1 vote     reply to comment
Mustard
Mustard Jul 16 2009, 6:26pm says:

WOW. This is an amazing mod, I want to see a sequel! The variety of the puzzles was great and a couple a bit challenging but I made it through, love that Cart-ride and Mr Whirly!

+1 vote     reply to comment
107th_Raven
107th_Raven Jul 16 2009, 5:24pm says:

Extraordinarily awesome !

+1 vote     reply to comment
Varsity
Varsity Jul 16 2009, 4:23pm says:

This mod is 2009's Minerva. It's just THAT good.

+1 vote     reply to comment
GeneralTrivium
GeneralTrivium Jul 16 2009, 4:17pm says:

I'm rather stuck. I put all the Antlion Guardians in their cages and then... Well nothing. Nowhere to go!

And when I try to get out of Mr. Whirly, it just continues controlling Mr. Whirly and I can't move!

+1 vote     reply to comment
General_McAyhem
General_McAyhem Jul 16 2009, 4:30pm replied:

hey me too :(

+1 vote     reply to comment
Icedecknight
Icedecknight Jul 16 2009, 4:37pm replied:

you geT OUT AND MOVE THE LEVER are you that lazy to move around and look.

-2 votes     reply to comment
General_McAyhem
General_McAyhem Jul 16 2009, 5:30pm replied:

no stupid, when i get out of it it keeps on controling mr.whirly

+1 vote     reply to comment
Icedecknight
Icedecknight Jul 16 2009, 9:22pm replied:

Idk spam keys then..

-2 votes     reply to comment
Master_Of_Hiddenry
Master_Of_Hiddenry Jul 16 2009, 7:00pm replied:

Have you tried the space key to get out?

+1 vote     reply to comment
GeneralTrivium
GeneralTrivium Jul 17 2009, 2:35am replied:

Yes but it still continues to control Mr. Whirly.

Thus meaning I can't move except jump and turn.

+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 Jul 2009
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9.6

1245 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, 7:36pm by Akito8

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First Person Shooter
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Sci-Fi
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