Nuclear Cataclysm takes you into the year 2020, where the world is endangered by a new kind of weapon in North Korean hands. As part of the well-known Raptor-Team, your task is to find and eliminate the threat.

Nuclear Cataclysm is my singleplayer mod for crysis that started in mid-2010 as a small map. Over the years, I added more and more stuff, a detailed storyline and custom content. It is now a whole new singleplayer campaign, including voice acting, many cinematic cutscenes, four maps with intense athmosphere and much more!

Mod features

  • Detailed leveldesign with intense atmosphere
  • Thrilling storyline
  • 4 Maps with various settings
  • Custom content like new skins, sounds, weapons and objects
  • free, crysis-like gameplay as well es fast, action-packed gameplay featured
  • English voice acting and English, German & Russian subtitles available


Nuclear Cataclysm has been released on May 29th, 2016. You can download it here:

Nuclear Cataclysm Release

PS: If you want, check out the Crysis-mod "Lost in Paradise" which is developed by RED and me! :)

  • View media
  • View media
  • View media
  • View media
  • View media
  • View media
Post article RSS Articles

Hello everyone!

It's been a few months since the release and I was able to get a bit distance from the mod. Most importantly, I'd like to thank you all for the over 1200 downloads and all your great comments and reviews. It was awesome to read how much most of you seem to like the mod! Allthough I realize that the download count is not too high, I think it's not bad for a Crysis mod that was released recently - after all, it's not the newest game anymore. Also, far more important than the download count to me is how much the players liked it, and judging from all your comments and reviews, I think I can be very happy with the outcome.

So once again, thank you guys very much!

The unused material of Nuclear Cataclysm

While I was recently looking through my older development files of Nuclear Cataclysm, I stumbled upon some older versions of the mod, which looked quite differently in some aspects. There are even some bigger, already very detailed parts which didn't make it into the final version. I think some of these parts could be quite interesting, so I decided to post them here as a little follow-up to the release. I know it's quite a long article, but maybe you'll like it!

Warning: Could contain spoilers!

North Korean Radio Station

This is a North Korean radio station, that was originally placed very high in the mountains in the last map (Cataclysm). The idea behind it was that the station acts as the connection between the airfield/missile base at the bottom of the valley and other North Korean forces, so it had to be disabled before the raptor team could advance to the airfield safely, as the base couldn't call for reinforcements anymore.

Unused Material

Unused MaterialScreenshots from the North Korean radio base.

I planned this as a short action sequence just at the beginning of the map - at first, the player can clear the base of foot soldiers with the BlackHawk's Minigun, and then has to rush into the base and disable the radio connection. However, I decided to cut this part as it became too complicated and I faced some technical difficulties with the Blackhawk sequence. Allthough I really liked the base, I think the intro of the map is now much smoother and overall better than it would have been with the base.

The area was already quite detailed, except from the last "detail layer" with all the small things like decals, small props, etc. But I never erased the terrain modifications - you can still see them in the release version.

US Submarine

This US submarine was supposed to be part of the intro sequence. Before I decided to use an intro movie to explain the background, I had planned to let the player experience it himself. I used the multiplayer submarine assets from Crysis to recreate an ohio class submarine, in which the player could take the role of an US Navy sailor.
The submarine was the one that was used to carry the second 401 prototype out of the US and was then captured by North Korean forces on its way. The player would experience this in a mix of cutscenes and simple tasks, like making his way through the submarine.

Unused MaterialThe submarine interior.

Screenshots from the submarine bridge.

The capture itself would have been quite cinematic and athmospheric: All the lights go out for a short time, leaving the submarine in complete darkness, you can only hear strange sounds coming somewhere from the submarine's hull. When the lights come on again, all systems are failing, but it's noticeable that the submarine is surfacing. Soon, North Korean special forces enter the submarine forcefully and capture the player. He's then flown away in a helicopter, and can see the surfaced submarine as it's being captured, similar to the short scenes I included in the intro movie.

Allthough the submarine interior and some of the cutscenes were already quite finished, I decided to cut it because it would make the entire intro too big. The submarine would have to be placed in an extra map, which would create unnecessary loading times, and some sequences became too complicated. I then decided that an intro movie could explain the entire backstory much easier and almost as athmospheric. But - who knows - maybe we will see the submarine somewhere else!

Unused MaterialScreenshot from the final capture-cutscene.

F-35 aircraft system

Another bigger part that I decided to leave out is the F-35 aircraft system. Some years ago during the development of Nuclear Cataclysm, I started to play around with a quite primitive flying system for the F-35 jet that is used in Crysis. As the basic flying mechanics actually worked quite well, I added more and more features to it. The entire system was based on Flowgraphs, and allowed you to fly the F-35 similar to the Battlefield 3/4 jets with keyboard controls.

Unused MaterialThe cockpit view of the F-35 with the custom HUD and multi-function displays.

You could switch between cockpit and 3rd-person view, choose between the Minigun, lock-on AIM-120 AMRAAM air-to-air heetseekers (if I remember correctly) or air-to-ground missiles. I also added a more detailed, F-18-styled cockpit with a HUD and multi-function displays (didn't really like the F-35's touchscreen cockpit :p ) and the modder befubo even created some awesome flash textures for it - the displays and HUD you can see above worked in real-time and displayed speed, height, weapon info, the aircraft's health, etc. There was also a primitive hitbox-based health system, and the player could eject from the plane if it's damaged too much.

Of cource, the system would need some kind of backstory in order to fit in the overall mod: As an air force pilot, the player would have to escort the C-17 ("pegasus one") that carries the Nuclear Emergency Support Team (NEST) to the North Korean missile base. During the mission (probably between the 3rd and 4th map), the player has to defend the C-17 against some enemy jets, enemy anti-air-posts etc.

Unused MaterialScreenshot from the (quite simple) opening cutscene, showing the C-17.

Sadly, there were quite many (mostly technical) reasons why this system didn't make it into the release version. The most important one was that I couldn't find a way to keep the cockpit camera in place correctly. Depending on the aircraft speed, the Flowgraph wasn't fast enough to update the camera position and the camera lagged horribly. Unfortunately, I and a few other modders I asked couldn't find a good workaround (like using C++ or the vehicle system).
The other big reason was that I would have needed a lot of extra time to create the mission logic - probably several months extra, and I simply didn't want to spend that much more time on it.

These are basically the biggest things of Nuclear Cataclysm that didn't make it into the final mod. I'm not planning to release these assets in any way, but if anyone should be interested to do something with it, send me a text message and we can talk! :)

What's next?

Allthough all your nice comments are very tempting, I will definitely not start a sequel or a similar project in the future - it was simply too big and took too long. However, some time after the release I began to miss working on the maps and started a small environment map, on which I'm working a bit from time to time. But it's nothing big, maybe I'll show some screenshots or create a mod page for it if I should decide to release it.

But there's another project which I and another modder un-freezed for a little bit - but I don't want to say too much, you will see once it's ready! :)

Anyways, hoped you liked this little update. Cheers!


Nuclear Cataclysm dev files are released!

Nuclear Cataclysm dev files are released!


The development files for Nuclear Cataclysm are released now. All info here - and a few words about the release.

Nuclear Cataclysm is released!

Nuclear Cataclysm is released!

News 28 comments

Nuclear Cataclysm is finally released! You can find all info here.

Update #12: Behind the scenes - 7 days to go!

Update #12: Behind the scenes - 7 days to go!

News 4 comments

Just seven days until the release! In this update, we take a look at some technical details of the mod.

Update #11: Status update & Release date!

Update #11: Status update & Release date!

News 1 comment

A new update with the current status and release date.

RSS Files
Nuclear Cataclysm Release

Nuclear Cataclysm Release

Full Version 44 comments

The full download for the Crysis mod Nuclear Cataclysm.

Nuclear Cataclysm Dev Files

Nuclear Cataclysm Dev Files

Source Code 9 comments

The Nuclear Cataclysm development files for the Crysis Sandbox 2 Editor.

Comments  (0 - 10 of 225)

wow, just wow, really this is the best mod I've ever seen, really aweasome cutscenes, gameplay and everything else. A really amazing job, thank you and everyone else involved with the creation of this mod, the experience of playing it was amazing. :D

Reply Good karma Bad karma+1 vote

hey maniac2109, i just downloaded your mod and it refuses to start, when i try to run the bin 64 or bin32bit i get an error message saying "windows could not find "bin32 (or 64)/crysis.exe, i got the game from steam but in one of your comments i see you are talking about a bin64 or 32bit.bat but it is nowhere to be found, can you help me? thanks in advance

Reply Good karma Bad karma+2 votes
maniac2109 Creator

This sounds like you installed the mod into the wrong path. With steam, you can run Crysis only in 32-Bit. Make sure you extract the downloaded folder into your Crysis/Mods folder (it probably looks like "...\Steam\steamapps\common\Crysis\Mods"). Then you should find a file called "NuclearCataclysm_32Bit.bat" in "\Steam\steamapps\common\Crysis\Mods\NuclearCataclysm". Run it and it should work!
If you still have problems, make sure your Crysis installation works correctly and that you can start the vanilla game. Check if your Crysis.exe is in "\Steam\steamapps\common\Crysis\Bin32". Hope it works!

Reply Good karma+2 votes

will there ever be a continuation?

Reply Good karma Bad karma+1 vote
maniac2109 Creator

No, I'm afraid there won't be any sequels. NC was kind of a one-time project.

Reply Good karma+1 vote

Run Nomad!

Reply Good karma Bad karma+2 votes

Hello! I just got back to crysis, and decided to replay this fantastic mod.
The problem is that I don't remember how I used to run it.
I know that in-game, you can "load" a mod in, but that just causes a game to close and restart without changing anything.

I'm pretty sure that there's something obvious I'm missing, and I'm just stupid, but could you please help me?

Reply Good karma Bad karma+1 vote
maniac2109 Creator

Hi, just navigate to your Crysis installation folder and go to Mods/NuclearCataclysm. Then start "NuclearCataclysm_64Bit.bat" (or 32Bit on Steam/32 Bit systems) to launch the mod.
I hope it works, enjoy your replay!

Reply Good karma+1 vote

create multiplayer mod Nuclear Cataclysm

Reply Good karma Bad karma+2 votes

This is amazing !!!!! need more mods like this !!!! , you genius .

Reply Good karma Bad karma+3 votes
Post a comment
Sign in or join with:

Only registered members can share their thoughts. So come on! Join the community today (totally free - or sign in with your social account on the right) and join in the conversation.

Follow Report Profile
Send Message
Release date
Mod watch
Community Rating



18 votes submitted.

You Say


Ratings closed.

Highest Rated (6 agree) 10/10

Fantastic mod level design and gameplay quality is AAA, this could have been a original Crysis DLC from Crytek. Petty the voice acting for some characters was to different from the original characters but the voice actors did a fantastic job nonetheless.

May 30 2016 by Argoon

Single Player
Embed Buttons
Link to Nuclear Cataclysm by selecting a button and using the embed code provided more...
Nuclear Cataclysm
Last Update
379 members