Half-Life 2

Half-Life 2

1,141 ratings
Research & Development
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165.278 MB
15 Nov, 2024 @ 5:38pm
1 Change Note ( view )

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Research & Development

Description
Research & Development is now available in workshop.

Updated to the newest Source Engine branch. (Engine error on startup fixed.)

It is preferable to unsubscribe from other mods, as they might cause glitches. Even the smallest mods might cause problems, therefore it is recommended to have an unmodded version of the game before playing.

Select Half-Life 2: Episode Two in the main menu before starting the mod to load necessary materials.

Research & Development is a puzzle centric Half-Life 2: Episode Two modification with creative environmental puzzles.

Rock Paper Shotgun: as must-play as an HL2 mod gets

Originally released on moddb.

Credits: mbortolino
84 Comments
Ender 14 Jul @ 8:32am 
My brain hurts
spuffs 9 Jul @ 2:46am 
An absolutely delightful puzzle-oriented campaign, of which only increase in quality the further you progress. They're ingenious but familiar, perfectly suited for the source engine. I'm utterly unable to believe I've slept on this gem until today.
tysonjung 2 Jul @ 3:26am 
찐으로 완벽함
lil bitch boy 1 Jul @ 7:28am 
Is the car section shit by design? every time i get out of the vehicle and then back in i cant move forward in the car.
76561198016560745 21 Jun @ 5:51am 
my brain was hurting when i finished playing this mod!
76561198016560745 21 Jun @ 5:50am 
когда закончил проходить этот мод то мозг кипел!но этого того стоило!
Electroencephalogram 17 Jun @ 5:02pm 
never before have I witnessed such a marvel of human engineering 10/10
Sam Nevadito 17 Jun @ 3:50pm 
I really love this map~
Lord Momazos 14 Jun @ 8:34pm 
one of the best maps i ever seen :gordon:
MurvinGame 4 Jun @ 4:05am 
Perfect:ditrustlove: