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  (0 - 50 of 1,252)
Avatar

Finland *SpankSL*

Online 17 minutes ago Joined Feb 14, 2012
Avatar

United States +GoldenCat+

Online 5 months ago Joined Aug 19, 2009
Avatar

Germany --JoKeR--

Online 31 minutes ago Joined Feb 2, 2009
Avatar

Germany -=[Colorado]=-

Online 1 day ago Joined Dec 23, 2008
Avatar

Czech Republic -Lord-

Online 6 days ago Joined Mar 20, 2005
Avatar

United States -slash-

Online 9 months ago Joined Dec 1, 2010
Avatar

United States -Zeus-

Online 5 years ago Joined Jan 8, 2010
Avatar

United Kingdom .illogical

Online 3 years ago Joined Dec 7, 2008
Avatar

Norway 050591

Online 2 days ago Joined Dec 31, 2009
Avatar

United States 0b1der

Online 3 weeks ago Joined Sep 14, 2013
Avatar

Russian Federation 100_o/o_f@ke

Online 6 hours ago Joined Aug 3, 2010
Avatar

Germany 107th_Raven

Online 1 year ago Joined Aug 9, 2008
Avatar

Portugal 13370001

Online 1 year ago Joined Jun 8, 2009
Avatar

Germany 56er

Online 8 hours ago Joined Dec 3, 2007
Avatar

Antarctica 8ft_Robot

Online 3 hours ago Joined Mar 13, 2009
Avatar

United States AAAStudios

Online 1 hour ago Joined May 7, 2009
Avatar

Germany ab2cd4

Online 1 year ago Joined Jun 6, 2010
Avatar

Germany abarmbold

Online 1 year ago Joined Dec 25, 2012
Avatar

United Kingdom abuabu

Online 4 years ago Joined Apr 24, 2010
Avatar

Japan Ac30

Online 5 years ago Joined Feb 15, 2010
Avatar

United States aceskillers

Online 2 weeks ago Joined Feb 26, 2012
Avatar

Poland AciDek

Online 4 years ago Joined Dec 30, 2007
Avatar

United States Acilius

Online 2 years ago Joined Jan 1, 2010
Avatar

Denmark Acolarh

Online 2 months ago Joined May 16, 2008
Avatar

Netherlands aCVfan

Online 12 hours ago Joined Jan 27, 2009
Avatar

Australia adamcirillo

Online 2 days ago Joined Feb 28, 2008
Avatar

Ireland adamobrn

Online 1 year ago Joined Jan 31, 2006
Avatar

United States adam_825

Online 1 year ago Joined Feb 23, 2012
Avatar

United Kingdom Adana_Bandit

Online 4 days ago Joined Jun 27, 2008
Avatar

Germany AddiB

Online 4 years ago Joined Sep 26, 2009
Avatar

United States Addicted_Gamer

Online 1 year ago Joined Oct 29, 2009
Avatar

Sweden Admiral_Skeybar

Online 2 hours ago Joined Dec 10, 2009
Avatar

Italy adokas

Online 2 years ago Joined Jan 22, 2012
Avatar

Sweden Adox

Online 4 years ago Joined Aug 8, 2009
Avatar

Poland ADreamer

Online 2 days ago Joined Jul 10, 2010
Avatar

France advandced

Online 10 months ago Joined Nov 21, 2007
Avatar

Sweden aeg4k

Online 2 days ago Joined Jan 29, 2009
Avatar

United Kingdom Aequus

Online 1 year ago Joined Aug 9, 2009
Avatar

New Zealand aerozol

Online 1 year ago Joined Jun 30, 2009
Avatar

United States aeVersatyle

Online 5 years ago Joined Jun 20, 2009
Avatar

Taiwan AJ917

Online 2 months ago Joined Aug 25, 2012
Avatar

Russian Federation akaSPY

Online 1 week ago Joined Jul 6, 2009
Avatar

United States akjohnny

Online 3 months ago Joined Dec 8, 2005
Avatar

Macedonia Akujin

Online 16 hours ago Joined Apr 1, 2006
Avatar

Finland Akutsi

Online 2 years ago Joined Aug 10, 2009
Avatar

Brazil aleixoteixeira

Online 1 week ago Joined Jun 3, 2007
Avatar

Sweden alesi08(swe)

Online 9 hours ago Joined Dec 7, 2008
Avatar

Germany alex57347614@nybella

Online 2 years ago Joined Sep 10, 2008
Avatar

Russian Federation Alfrodos

Online 5 years ago Joined Nov 17, 2007
Avatar

Hungary ALIENwoods

Online 2 months ago Joined Dec 6, 2002
Icon
Half-Life 2: Episode Two Icon
Platform
Windows
Developed By
mbortolino
Contact
Send Message
Release Date
Released Jul 13, 2009
Mod Watch
Track this mod
Member Statistics
Members
1,252
Online
6
Views
3,957,993
Views Today
887
Last Online
Commissar1032
Commissar1032 Online 8 seconds ago
Dr_Nick
Dr_Nick Online 2 minutes ago
TheAughts
TheAughts Online 4 minutes ago
Meraqel
Meraqel Online 6 minutes ago
Beardwearer
Beardwearer Online 7 minutes ago
Kys
Kys Online 9 minutes ago
Slye_Fox
Slye_Fox Online 10 minutes ago
Nihillo
Nihillo Online 11 minutes ago
AmmatTheAnkh
AmmatTheAnkh Online 11 minutes ago
Durandael
Durandael Online 13 minutes ago
ManyMushrooms
ManyMushrooms Online 16 minutes ago
*SpankSL*
*SpankSL* Online 17 minutes ago
Morfin
Morfin Online 18 minutes ago
Brickinator
Brickinator Online 21 minutes ago
Held
Held Online 21 minutes ago