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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Matt Bortolino's excellent HL2: Episode Two "action puzzler" has been released from nowhere!

Posted by Varsity on Jul 17th, 2009

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

(It's really quite good.)Download now!

(If you have trouble pushing buttons accurately, download the July 17th update from the link above.)

(If you can't get out of the cart, open the console and type ent_fire ui deactivate.)

Post comment Comments  (0 - 50 of 97)
Varsity
Varsity Jul 17 2009, 4:42am says:

I can only play this in short bursts because my computer is on its last legs, and I swear, every time I load it up to solve a couple more puzzles it gets better. :D

+3 votes     reply to comment
Jokerme
Jokerme Jul 17 2009, 8:12am replied:

And it gets better until it finishes. That's freaking. Even ending sequence is awesomely awesome...

+1 vote     reply to comment
DuckSauce
DuckSauce Jul 17 2009, 7:41am says:

Looking good, gonna download :)

+1 vote     reply to comment
Metalspy
Metalspy Jul 17 2009, 8:59am says:

Sounds interesting and the screenshots look great.. downloading!

+1 vote     reply to comment
Luke_Allstar
Luke_Allstar Jul 17 2009, 9:55am says:

played it a bit and till now it's realy not bad, but i think there are some bugs
one time a guy was flying in the air and shooting on me and another time i was able to go inside a car which i had to destroy but i don't got out of it, i had to load the last savegame, was a little bit weird

+1 vote     reply to comment
Dodomaster
Dodomaster Jul 17 2009, 11:00am says:

Ok, played it, its awesome.

Some points of critique though: I couldn't get out of the car, when I press e the animation plays(of getting out) but then I cannot move, and I am still controlling the car(only through glitching my way out, I managed to finish it).

There is also a bug when I quicksaved before the sequence where the antlion is supposed to die, but the apc never came.

Locking the antlionguards in their cages was a bit too hard(random flinging) and controlling the car was kind of annoying.

Still, it was pretty fun!

+1 vote     reply to comment
Demonz312
Demonz312 Jul 17 2009, 4:13pm replied:

yea i have same problem with car damn i can't move :'( . waiting for update...

+1 vote     reply to comment
Toastmonster
Toastmonster Jul 20 2009, 1:32pm replied:

This is where I'm stuck. I've trapped the antlion guards, and now I need to get out of Mr Whirly in order to work the valve to open the gate. But when I press E, I'm still in control of the vehicle yet I'm not moving. :(

+1 vote     reply to comment
SumoPower
SumoPower Jul 20 2009, 8:58pm replied:

You people dont know how to read? Or are you all too lazy?(If you can't get out of the cart, open the console and type ent_fire ui deactivate.)

0 votes     reply to comment
enablerbr
enablerbr Jul 17 2009, 11:09am says:

i really enjoyed this mod. only gripe with it was controlling the vehicle. was to over sensitive to control.

+1 vote     reply to comment
clafferty653
clafferty653 Jul 17 2009, 11:23am says:

awesome just herd of it there now oh and btw hiya ducky rofl

+1 vote     reply to comment
corigami
corigami Jul 17 2009, 11:47am says:

Single player MOTY so far.

+1 vote     reply to comment
fantastikool1
fantastikool1 Jul 17 2009, 11:50am says:

the mod does not show up on my games' list although I extracted the folder in the SourceMods directory:(

+1 vote     reply to comment
DuckSauce
DuckSauce Jul 17 2009, 11:51am replied:

did you restart steam after extracting it?

+1 vote     reply to comment
fantastikool1
fantastikool1 Jul 17 2009, 12:45pm replied:

of course I did, I'm not a noob to mods

+1 vote     reply to comment
Varsity
Varsity Jul 17 2009, 12:51pm replied:

It requires Episode Two.

+1 vote     reply to comment
DuckSauce
DuckSauce Jul 17 2009, 2:20pm replied:

that shouldn't affect it showing up though? Well at least I heard all that'd do is prevent the mounted content(from Ep2) not working. Giving error models and the like.

+1 vote     reply to comment
M@ty
M@ty Jul 19 2009, 12:37pm replied:

No I have the same issue. If you don't have Ep2 it wont list.

+1 vote     reply to comment
Demonz312
Demonz312 Jul 17 2009, 1:03pm says:

something weird i can't write code i don't see my crosshair and its hard to write code i click e on some number 9 its click me number 3 wtf? some ides? :(

0 votes     reply to comment
Ka!
Ka! Jul 17 2009, 1:26pm replied:

Type "crosshair 1" in console, without quotations of course.

+2 votes     reply to comment
Spas12
Spas12 Jul 17 2009, 2:05pm says:

DOWNLOAD THIS MOD. i was a beta tester for it. :D

-2 votes     reply to comment
DuckSauce
DuckSauce Jul 17 2009, 2:22pm says:

Just finished it... everyone should bloody play this just to get to use Mr. Whirly :D and do the end battle!

Holy ****, so awesome!
Aside from the keypad part(which was solvable with crosshair), this mod is totally a 10/10!

+2 votes     reply to comment
Squeebo
Squeebo Jul 17 2009, 2:24pm says:

Downloading! Looks sweet.

+1 vote     reply to comment
AJDominion
AJDominion Jul 17 2009, 2:25pm says:

I think this is an awesome mod. The only issue I had was getting in and out of Mr. Whirley, the radius to use it was small.

+1 vote     reply to comment
-=117=-
-=117=- Jul 17 2009, 3:11pm says:

I was excited until I saw it was for Episode II.

It's so disappointing how HL2:EP2 and HL2 are seperated.

-2 votes     reply to comment
Varsity
Varsity Jul 17 2009, 3:23pm replied:

It's almost as if they weren't released four years apart.

+4 votes     reply to comment
Inf.
Inf. Jul 17 2009, 3:24pm says:

Great mapping, great + original gameplay. Really impressed with this mod, congrats on an awesome creation :)

+1 vote     reply to comment
treat
treat Jul 17 2009, 4:53pm says:

Valve has a lot to learn from you, sir. I'll definitely be playing through this again sometime soon.

+1 vote     reply to comment
macing
macing Jul 17 2009, 6:55pm says:

I'm stuck at the part where you have to drag the resistance through a mace with your gravity gun. It' impossible and it keeps resetting altough I don't even come close to the walls.

+2 votes     reply to comment
Spooboy
Spooboy Jul 17 2009, 6:56pm says:

Anyone else having a problem using the keypads...I have to noclip it to use them.

+1 vote     reply to comment
macing
macing Jul 17 2009, 7:24pm says:

Ok I just finished it. Great mod!

+1 vote     reply to comment
Fartingo
Fartingo Jul 17 2009, 7:50pm says:

Doesn't show up on my games list, I've restarted Steam, I put it in SourceMods, and I have Ep2, what gives?

+1 vote     reply to comment
Rafaël_De_Jongh
Rafaël_De_Jongh Jul 17 2009, 8:12pm says:

if i instal it doesnt appear in my steam list yes i did put it in

D:\Program Files\Steam\SteamApps\SourceMods\

any solution to this problem ?

+1 vote     reply to comment
Playerh3ll
Playerh3ll Jul 17 2009, 9:00pm replied:

Restart steam, maybe it shall work ?

+1 vote     reply to comment
Playerh3ll
Playerh3ll Jul 17 2009, 8:48pm says:

This is The Best Single Player mod of the moment, everybody should try it, it's quite easy at first, then becomes progressively more complicated.

!!! Those who have not finished the mod, DON'T READ BELOW !!!

when your are on a tram ( the platform that moves ), when the zombines drop grenades near you, At one moment I kind of Grenade-Jumped onto a roof.

You should do a bit of tweaking in the driving parts, these are quite glitchy.

+1 vote     reply to comment
Jesternz08
Jesternz08 Jul 17 2009, 9:27pm says:

lots of eye candy, will try it :)

+1 vote     reply to comment
DarkLord-pnd-
DarkLord-pnd- Jul 17 2009, 9:55pm says:

What do I do in the APC bit, where antlion dies

+1 vote     reply to comment
Playerh3ll
Playerh3ll Jul 17 2009, 9:58pm replied:

Put the barrels, the engine and stuff on the platform, it should solve your problem !

+1 vote     reply to comment
DarkLord-pnd-
DarkLord-pnd- Jul 17 2009, 10:03pm replied:

Ive put everything I can find there, even stood my self, nothing happened.

+1 vote     reply to comment
DuckSauce
DuckSauce Jul 18 2009, 3:53am replied:

should be the wheel, the engine, the barrel and the metal bar, you don't even need to stand on it yourself just those four and it will be enough ^_^ try to make sure to put em around the center of the container.

+1 vote     reply to comment
DarkLord-pnd-
DarkLord-pnd- Jul 18 2009, 9:21am replied:

Ive just restarted the whole level, it worked.

+1 vote     reply to comment
reverendanthony
reverendanthony Jul 17 2009, 10:05pm says:

How do you get past the part right at the beginning of level four? I have literally no idea what to do -- I've gotten the large container to rotate around for no reason, and I can gravity-shock the little suspended bridge back and forth, but I have no idea how to actually accomplish anything. I can't even get off the ground floor of the level.

+1 vote     reply to comment
DuckSauce
DuckSauce Jul 18 2009, 3:55am replied:

I was stuck there for a long time as well, look around and you will (probably already found) find the switch to move a concrete block with a target on it, be sure to put it in front of the bridge which you can swing around with the grav gun.

Next, stand under the bridge and start rocking it back and forth(hit the front, when it swings back hit the back, when it's swung back to the front hit the front again, etc) until it will slam into it and then bam watch the awesome stuff happen!

+1 vote     reply to comment
VanderOZ
VanderOZ Jul 17 2009, 10:45pm says:

Great variety of gameplay! Wow, this is Valve-quality.

+4 votes     reply to comment
Nibbled
Nibbled Jul 17 2009, 10:54pm says:

Such awesome mod, completed it tho! Gameplay was awesome! Great little mod something to do while I was bored. I recommend this! + lol @ microwave part I sorta failed there ;D

+1 vote     reply to comment
FireyLies
FireyLies Jul 17 2009, 11:22pm says:

Just finished it. it was great but the controls on the Whirler were a bit of a bitch other than that the rest of the game was great some puzzles were frustrating (i actually went and got a dry erase marker and figured out the energy balls path for the gravity gun part =P) but not so difficult you got ****** off and stopped playing. so i give it a 9 out of 10 it was fun and definitely replayable

+1 vote     reply to comment
Bloodvayne
Bloodvayne Jul 17 2009, 11:33pm says:

This mod is gonna need a Prima guide. Great mod! lol..

+1 vote     reply to comment
TheDualWorks
TheDualWorks Jul 17 2009, 11:40pm says:

one of the best single player mods out there it was good but mr wheel can use some work and makea part 2

+1 vote     reply to comment
treat
treat Jul 18 2009, 12:29am says:

I for one thought the vehicle handled perfectly considering its forward thrust came from a propeller on the front and the yaw made a lot of sense because of the horizontal fan attached in the rear. Sill a little over sensitive considering the thing was moving on wheels, but it wouldn't have been any sort of challenge had it not been as sensitive as it was.

+1 vote     reply to comment
norton2
norton2 Jul 18 2009, 12:46am says:

This is a must have.

+1 vote     reply to comment
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Platform
Windows
Developed By
mbortolino
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Release Date
Released Jul 14, 2009
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