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MW2 decompilation is nearing its end. With currently 17 agents working in parallel, we're making progress at an incredible pace. The game is fully playable now and almost all visible bugs are gone. Only a few are left. I even managed to get my first nuke ☢️😂

697,848 views • 2 days ago •via X (Twitter)

58 Comments

Maurice Heumann's profile picture
Maurice Heumann2 days ago

The source code is of great quality. It is really clean and probably super close to the original source code. We even have many dev functionalities avilable, e.g. raw asset loading or debug assertions. More than 70% of the functions are identical:

Maurice Heumann's profile picture
Maurice Heumann2 days ago

It was an amazing experiment and I honestly learned so much about AI orchestration. I will surely create a final post with all take aways.

Humberto's profile picture
Humberto1 day ago

We got Temu MW2 before GTA6

Maurice Heumann's profile picture
Maurice Heumann1 day ago

the fuck you mean temu mw2. this was genuinely hard work. lots of optimizations, harness development, and engineering to get code quality on a maximum level.

Jacob Readdy's profile picture
Jacob Readdy1 day ago

@humbis Soooooo temu cod?

Maurice Heumann's profile picture
Maurice Heumann1 day ago

@humbis

MGV's profile picture
MGV2 days ago

What about the niche animation mechanics like barrel rolling shotguns and tac knife flipping ?

Maurice Heumann's profile picture
Maurice Heumann2 days ago

good question. this will need a few rounds of testing

MGV's profile picture
MGV2 days ago

There are tons of niche mechanics specific to the mw2 engine - consider making a repository / running list of such

Maurice Heumann's profile picture
Maurice Heumann2 days ago

This is exactly why we chose byte exact decompilation. The chance that all these mechanics work flawlessly isnextremely high.

Anderson's profile picture
Anderson2 days ago

17 agents decompiling a game in parallel while their human gets his first nuke, everyone is doing their job

Tundra🇮🇹☭'s profile picture
Tundra🇮🇹☭1 day ago

How long till game companies and their legal teams come at all of this like a freight train

Maurice Heumann's profile picture
Maurice Heumann1 day ago

It's really hard to tell. I mean we've been modding games for years now. MW2 is 17 years old. I don't think anything will happen. I think it's a hype that will pass. Most of these decompilation projects are incomplete and thus will lose traction fast.

Alex St. Louis's profile picture
Alex St. Louis2 days ago

@momo5502 love it, now ask your agents to port it to WebAssembly / WebGPU next and add multiplayer if you haven't already!

Drew Bredvick's profile picture
Drew Bredvick1 day ago

turn on sleight of hand that reload speed is killing me

Maurice Heumann's profile picture
Maurice Heumann1 day ago

nah. scavanger is goated. how else would i be able to camp and retain my ammo 😂

Daniel Collin's profile picture
Daniel Collin2 days ago

Are you going for byte-byte recompilation back to the original executable?

Maurice Heumann's profile picture
Maurice Heumann2 days ago

yes and no. Byte-byte, but a dev version of the game, that is much richer than retail. It contains the gsc compiler, raw asset parsing code, debug assertions, ingame console and much more that retail lacks

Daniel Collin's profile picture
Daniel Collin1 day ago

Cool. Thanks!

BCR's profile picture
BCR2 days ago

I need an IOS version with MP now

Maurice Heumann's profile picture
Maurice Heumann2 days ago

🫡

farkas the wolf pup's profile picture
farkas the wolf pup2 days ago

…they’re going to DMCA this because they want you on modern shitslop

doom Balldy's profile picture
doom Balldy2 days ago

why it feels like the Famas has a delay when it shoots?

Maurice Heumann's profile picture
Maurice Heumann2 days ago

because it has delay 😂 that's one of the bugs left. we're not fully done, yet

Danny's profile picture
Danny2 days ago

Halo Reclaimer x MW2 lobbies are going to go so hard

saila's profile picture
saila2 days ago

Where can I find it

Humble's profile picture
Humble2 days ago

How is the performance compared to the origina? Im very curious.

Maurice Heumann's profile picture
Maurice Heumann2 days ago

it's identical. byte exact decompilation means the semantics are the same.

Humble's profile picture
Humble1 day ago

Thanks man, thats actually really cool then. I was wondering. As all the fps counters in these videos are always like 80fps or whatever.

Youcef 🇩🇿's profile picture
Youcef 🇩🇿2 days ago

is this the rust rewrite I keep hearing about? or is that something different

Maurice Heumann's profile picture
Maurice Heumann1 day ago

No, the rust rewrite is basically a completely new game using MW2 assets. This is a faithful decompilation of MW2 retaining all functionalities of vanilla MW2 1:1

Youcef 🇩🇿's profile picture
Youcef 🇩🇿1 day ago

that's awesome I've read your first blogpost, I'm guessing it was a learning curve to orchestrate the agents in an efficient way please do not forget about us plebs and teach us the efficient workflow you ended up with. I wanna try this

Maurice Heumann's profile picture
Maurice Heumann1 day ago

will do. though, i still want to wait a bit. one of the agents has decided to delete the vm again 😭 don't want to write a blog post giving shit advice :P

MC Master's profile picture
MC Master2 days ago

Hoping for WaW, BO1 and BO2 someday, probably still a couple years away though

Stewie's profile picture
Stewie2 days ago

I would love to see a write up about how to orchestrate agents to do these sorts of tasks

AK's profile picture
AK2 days ago

Will you opensource the code?

Shazli's profile picture
Shazli1 day ago

Why are people doing all this? What is his point of decompiling the game? What do you try to do exactly?

Maurice Heumann's profile picture
Maurice Heumann1 day ago

lot's of reasons, but the main reason is I want the source. ever since I touched MW2 I dream of having the source.

ismaelvega's profile picture
ismaelvega1 day ago

@ohelshazli @grok explain why just buying the game doesn't give you access to "the source". im lost here

Grok's profile picture
Grok1 day ago

Buying a game gets you the compiled binary (machine code the PC runs) plus assets, not the original human-readable source code the developers wrote. That source stays proprietary and is never shipped with the product. Decompilation is the hard reverse-engineering process of reconstructing an approximation of it from the binary.

ndrzjx's profile picture
ndrzjx2 days ago

how did u get the assets though?

Maurice Heumann's profile picture
Maurice Heumann1 day ago

I bought the game man 😂

Leo's profile picture
Leo2 days ago

Congrats! Will you release the source? I would love to port it to iOS just for fun :D probably for Apple TV too. Write me if you don’t want to share it publicly. I can help.

homeserversltd's profile picture
homeserversltd2 days ago

bro please please please let us self host and run lan parties of this shit

Jesus christ is a lie and the real satan's profile picture
Jesus christ is a lie and the real satan2 days ago

would be cool if we could get skyrim/half life/doom level modding for all or most games theres so many games with awesome gameplay but not that much replayability

SMBMoneyMike's profile picture
SMBMoneyMike1 day ago

Hearing and seeing this gave me Vietnam (middle school) flashbacks

Jo's profile picture
Jo2 days ago

Where we’ll be able to play it?

idk's profile picture
idk2 days ago

Can you DLSS 5 it?

Foster People's profile picture
Foster People2 days ago

so this will be a higher end iw4x?

Rollando | BTC Maxi Lite | NFFA's profile picture
Rollando | BTC Maxi Lite | NFFA1 day ago

This game is already native on PC, what's the point here?

zallow123's profile picture
zallow1232 days ago

Can you explain what this project is?

0x5uZ 🍙's profile picture
0x5uZ 🍙2 days ago

are you not afraid that Activition will come after you? Don’t get me wrong, i’m proud of your progress and love what you do, but I don’t want anything bad to happen

Ricardo Carvalho's profile picture
Ricardo Carvalho2 days ago

This is such a great project and I hope to see more of this with different CoD titles, let's modernize and preserve those games forever!

Eli⭐'s profile picture
Eli⭐2 days ago

Are there any specific tooling you guys use?

Sam Izzo's profile picture
Sam Izzo1 day ago

Impressive work!

Tim's profile picture
Tim2 days ago

How much does it cost to do this?

Gruff Donaar 🌌 VTUBER / BOUNTY HUNTER's profile picture
Gruff Donaar 🌌 VTUBER / BOUNTY HUNTER1 day ago

What we do here is go back.

Maurice Heumann's profile picture
Maurice Heumann1 day ago

yes, we go back to the glory of gaming.

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