Research and Development
PC

Research and Development

Marcello Bortolino• Marcello Bortolino
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Jul 16, 2009
182643
Marcello Bortolino
Marcello Bortolino
ShooterPuzzle
Single player
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About the Game
0 Players

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

Editions & Alternate Versions
Half-Life 2: Episode Two
Original Game
Half-Life 2: Episode Two
2007
Offshore
Special Edition
Offshore
2008
The Great Forever Tomorrow
Special Edition
The Great Forever Tomorrow
2009
Half-Life 2: Very Hard Mod
Special Edition
Half-Life 2: Very Hard Mod
2009
Korsakovia
Special Edition
Korsakovia
2009
Dangerous World
Special Edition
Dangerous World
2009
Radiator
Special Edition
Radiator
2009
Final Project
Special Edition
Final Project
2010
Dangerous World 2
Special Edition
Dangerous World 2
2010
Claustrophobia
Special Edition
Claustrophobia
2011
Underhell
Special Edition
Underhell
2011
Precursor
Special Edition
Precursor
2011
Missile Strike Imminent
Special Edition
Missile Strike Imminent
2011
Mission Improbable
Special Edition
Mission Improbable
2012
Grey
Special Edition
Grey
2012
Deep Down
Special Edition
Deep Down
2013
The Masked Prisoner
Special Edition
The Masked Prisoner
2014
The Citizen Returns
Special Edition
The Citizen Returns
2014
The Gate 2
Special Edition
The Gate 2
2014
Run Think Shoot
Special Edition
Run Think Shoot
2015
The Sprucecape Mod
Special Edition
The Sprucecape Mod
2015
The Closure
Special Edition
The Closure
2016
The PTSD Mod
Special Edition
The PTSD Mod
2017
Half-Life 2: MMod - Half-Life 2: Episode Two
Special Edition
Half-Life 2: MMod - Half-Life 2: Episode Two
2018
Atrophy: XCIX
Special Edition
Atrophy: XCIX
2020
Half-Life 2: Deeper Down
Special Edition
Half-Life 2: Deeper Down
2020
Blasted Lands
Special Edition
Blasted Lands
2021
Thunder's Leaves
Special Edition
Thunder's Leaves
2021
Report III
Special Edition
Report III
2021
Quantum Paradox
Special Edition
Quantum Paradox
2021
A Friendly Reminder
Special Edition
A Friendly Reminder
2022
Goreagulation
Special Edition
Goreagulation
2022
Jabroni Brawl: Episode 3
Special Edition
Jabroni Brawl: Episode 3
2022
Trainwreck
Special Edition
Trainwreck
2023
A Dire Emergency in Space
Special Edition
A Dire Emergency in Space
2023
Half-Life 2: VR Mod - Episode Two
Special Edition
Half-Life 2: VR Mod - Episode Two
2023
Disrepair
Special Edition
Disrepair
2023
Raising the Bar: Salvation
Special Edition
Raising the Bar: Salvation
2023
Disbelief
Special Edition
Disbelief
2025
Report: Stas
Special Edition
Report: Stas
Report II
Special Edition
Report II
Half-Life: Through The City
Special Edition
Half-Life: Through The City
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Research and Development
Research and Development
2009 • Marcello Bortolino
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