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 101 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 113 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 Files
Research and Development Patch - Source SDK 2013

Research and Development Patch - Source SDK 2013

Patch 57 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 47 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 47 comments

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

Comments  (0 - 10 of 795)
lambda1280
lambda1280

I NEED SOME HELP

I was playing it, and I have some BUGs with "Mr. Whirly the CAR", that I CAN'T leave the vehicle properly, which means, I left it, but my control was stuck on the vehicle

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BionicCoyote
BionicCoyote

Awesome mod! The puzzles were fun to solve without being to tediously difficult to solve! Here's a COMPLETE WALKTHROUGH I recorded of it!

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TheGoatLord777
TheGoatLord777

I have Half-Life 2: Episode 2 installed. But it still has texture errors and no chapter selection.

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alialatrach
alialatrach

Maybe because it is using textures from "SDK Singleplayer 2013", install that and then right-click on it, go to properties and type in launch option
" -upcoming"
This will install the missing textures from SDK Singleplayer

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Leongamerfyt8
Leongamerfyt8

When i launch the game it has missing textures and models anyone know how to fix this?

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TheOneFreeEgg
TheOneFreeEgg

...You need half life 2 episode 2 for the mod. Or else it will have missing textures and models.

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Zlandael
Zlandael

Since HL: Alyx tools are out as of today, I would love to see an updated version of this mod in VR. It would be fantastic.

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