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

Members Watching  (100 - 150 of 1,225)
Avatar

New Zealand Astron840

Online 9 hours ago Joined Sep 15, 2012
Avatar

United States grabbie

Online 9 hours ago Joined Aug 29, 2009
Avatar

Antarctica Meraqel

Online 9 hours ago Joined Aug 2, 2009
Avatar

United States Zlandael

Online 9 hours ago Joined May 16, 2009
Avatar

Sweden l0d1z

Online 10 hours ago Joined Feb 4, 2004
Avatar

United Kingdom NIVEL

Online 10 hours ago Joined May 3, 2009
Avatar

United States ian-perry

Online 10 hours ago Joined Jan 18, 2013
Avatar

United States Seaal

Online 10 hours ago Joined May 18, 2010
Avatar

United States Icedecknight

Online 10 hours ago Joined May 31, 2009
Avatar

Australia blackcat12951

Online 10 hours ago Joined Oct 14, 2010
Avatar

United States yamen21

Online 11 hours ago Joined Aug 30, 2008
Avatar

Germany swatty007

Online 11 hours ago Joined Oct 3, 2010
Avatar

Canada wing0black

Online 11 hours ago Joined Dec 5, 2007
Avatar

Turkey Barnz

Online 12 hours ago Joined Aug 9, 2003
Avatar

United Kingdom nVr_thiNk

Online 12 hours ago Joined Nov 1, 2012
Avatar

Brazil DanteXVII

Online 12 hours ago Joined May 26, 2008
Avatar

United States Blood_Wraith

Online 12 hours ago Joined Jul 13, 2008
Avatar

Slovakia Milk_N_Cookies

Online 12 hours ago Joined May 4, 2014
Avatar

Denmark luqadoo

Online 13 hours ago Joined May 16, 2009
Avatar

Brazil Emr19

Online 13 hours ago Joined Jan 7, 2008
Avatar

United States Colossal

Online 13 hours ago Joined Dec 16, 2008
Avatar

Belgium Sergesosio

Online 13 hours ago Joined Sep 6, 2009
Avatar

United Kingdom Hedgepig23

Online 13 hours ago Joined Sep 6, 2010
Avatar

United Kingdom MarkC.

Online 14 hours ago Joined Jul 13, 2008
Avatar

Canada superstepa

Online 14 hours ago Joined Mar 9, 2009
Avatar

United States beefgun7

Online 15 hours ago Joined Jan 14, 2009
Avatar

United Kingdom Brickinator

Online 15 hours ago Joined Apr 19, 2012
Avatar

United Kingdom Slye_Fox

Online 15 hours ago Joined May 19, 2004
Avatar

Czech Republic Matthes_CZ

Online 15 hours ago Joined Mar 13, 2011
Avatar

Brazil BioDestroyer

Online 15 hours ago Joined May 12, 2009
Avatar

United States Beardwearer

Online 15 hours ago Joined Mar 20, 2012
Avatar

Russian Federation Kys

Online 15 hours ago Joined Feb 8, 2009
Avatar

Norway zaph

Online 15 hours ago Joined Jan 29, 2006
Avatar

Bulgaria ThePredatorBG

Online 15 hours ago Joined Oct 30, 2008
Avatar

Germany The_Captain943

Online 16 hours ago Joined Feb 28, 2010
Avatar

Norway 050591

Online 16 hours ago Joined Dec 31, 2009
Avatar

Brazil LivingWithGames

Online 16 hours ago Joined Jul 6, 2010
Avatar

Germany ponpat

Online 17 hours ago Joined Jul 26, 2009
Avatar

Sweden alesi08(swe)

Online 17 hours ago Joined Dec 7, 2008
Avatar

Germany R3bornSh4dow

Online 17 hours ago Joined Aug 2, 2010
Avatar

United Kingdom Kobra299

Online 17 hours ago Joined Dec 2, 2008
Avatar

France Mimyke86

Online 17 hours ago Joined Apr 18, 2006
Avatar

United States hscsguy

Online 17 hours ago Joined Jan 4, 2012
Avatar

Poland jhxp

Online 18 hours ago Joined Dec 2, 2006
Avatar

United States zonbie

Online 18 hours ago Joined May 11, 2009
Avatar

Germany Grammatik

Online 19 hours ago Joined Oct 16, 2009
Avatar

Austria GMod-Player

Online 19 hours ago Joined Aug 16, 2010
Avatar

Estonia StealthyWarrior

Online 19 hours ago Joined Feb 18, 2012
Avatar

United Kingdom DazJW

Online 19 hours ago Joined Dec 17, 2006
Avatar

Hungary bossbob88

Online 20 hours ago Joined May 15, 2008
Icon
Half-Life 2 Icon
Platform
Windows
Developed By
mbortolino
Contact
Send Message
Release Date
Released Jul 14, 2009
Mod Watch
Track this mod
Member Statistics
Members
1,225
Online
9
Views
3,494,203
Views Today
143
Last Online
MrGnang
MrGnang Online 2 seconds ago
Dr_Nick
Dr_Nick Online 35 seconds ago
patrickul87
patrickul87 Online 1 minute ago
Snarboo
Snarboo Online 2 minutes ago
takesito
takesito Online 3 minutes ago
TheAughts
TheAughts Online 5 minutes ago
Captain_Iglo
Captain_Iglo Online 5 minutes ago
ManyMushrooms
ManyMushrooms Online 6 minutes ago
ohlsson96
ohlsson96 Online 8 minutes ago
SinisterExaggerator
SinisterExaggerator Online 10 minutes ago
Unq
Unq Online 12 minutes ago
RaviL
RaviL Online 17 minutes ago
--JoKeR--
--JoKeR-- Online 19 minutes ago
nijbu
nijbu Online 20 minutes ago
Cherub
Cherub Online 25 minutes ago