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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RPS digs R&D

News 28 comments

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.

Research and Development released

Research and Development released

News 98 comments

Matt Bortolino's excellent HL2: Episode Two "action puzzler" has been released from nowhere!

Players Choice - Mod of the Year

Players Choice - Mod of the Year

Feature 115 comments

View 2009's mod of the year, as picked by you the players.

A Year in Review - July

A Year in Review - July

Feature 4 comments

2009 has been a fantastic year for modding and indie gaming. With the highest amount of recorded featured releases ever on ModDB it can still go over...

WSIP: Research and Development

WSIP: Research and Development

Feature 31 comments

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

RSS feed Downloads
Research and Development Patch - Source SDK 2013

Research and Development Patch - Source SDK 2013

Patch 7 comments

This patch fixes most issues related to engine branch incompatibility and is designed to run using the latest "Beta" of Source SDK Base 2013 Singleplayer...

Research and Development (installer)

Research and Development (installer)

Full Version 54 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

Full Version 30 comments

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

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Guest1982
Guest1982

Background error too :[

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Poren-Mordecai
Poren-Mordecai

were is background
fix this

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stuffedbear
stuffedbear

wtf? background error please fix or how to fix

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Gylyan
Gylyan

jay! "cant find background"
how funny

#no #sarcasm #bug/glitch

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Dune_Jumper
Dune_Jumper

The Steampipe fix worked flawlessly. The only problem I noticed was that the HUD was missing, which isn't exactly needed in this game anyway.

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Guest
Guest

Почему когда я захожу в игру мне пишет Cannot find backgrounds

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Gylyan
Gylyan

Same problem here!

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Dune_Jumper
Dune_Jumper

Why does Mod DB say this just updated?
Weird, a ton of mods say they were updated but aren't actually. How bizzare.

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TheUnbeholden
TheUnbeholden

They where listed incorrectly as HL2 mods, now they are under HL:Ep2. They specifically require it to run.

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9.6

1251 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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