Downloading the Client

📦Main Content (Last Updated: Aug. 15 2025 - up to 📥#14: The Loopening)

This download includes everything you need to get onto KFO besides the Client (See Downloading the Client). Download this if you're new to the server, moving between computers, or... whatever other reasons you can think of!

Download:
Google Drive

  1. Launch Attorney_Online.exe
  2. Search for "Killing Fever Online" in the "Public Servers" list
  3. Select "Killing Fever Online" in the list
  4. Click "Add to Favorites" if you haven't already!
  5. Click "Connect"
  6. You're in!

"Public Servers" doesn't work? Don't worry. You can still get in, like this:
  1. Launch Attorney_Online.exe
  2. Swap to "Favorite Servers"
  3. Click "Add Server" and put in this data:

    4. Display Name: Killing Fever Online
    Hostname ~ IP: 135.148.43.158
    Port: 50000
    Protocol: WEBSOCKET
  4. Click "Save"
  5. Select "Killing Fever Online" in the list
  6. Click "Connect"
  7. You're in!

How to download the 🌟Newest Updates:

  • Check the below downloads for the 🌟Newest Update or the update you want
  • Extract the update into the same directory as the .exe and replace anything it asks you to replace
  • If they're present, extract any of the .bat files into the same directory as the .exe then run them.
How to Install Content Packs:
  1. Extract it
  2. Launch Attorney_Online.exe
  3. Open the Settings screen
  4. Navigate to Assets tab
  5. Click "Add..."
  6. Select the base_3D folder

🌟📥#14: The Loopening (Thursday, January 23rd, 2025)

INCLUDES:

  1. All KFO base content tracks, now properly LOOPED! This means songs will no longer fade out and fade in, and just loop seamlessly.
  2. Some automation was used for the loopening! Therefore, if you find a loop that does not sound right, please report it to me in #tech-support and I'll make a note of it to fix in the next update!

Download: Google Drive

#13: Hallow Een Update (Oct. 31 2024)

Includes more HD backgrounds, DR2/Izuru Kamukura, fixes to DRAE/Byakuya Togami; JuiJutsu Kaisen characters, OnePiece characters and Lobotomy Corporation characters by @onebigparadox, Fixed missing tracks for DR and DR2 soundtracks: missing execution music and some of the missing SFX/cutscene tracks, DR3 and DRv3 music packs re-ripped by DRO and converted to KFO looping points

Download: Google Drive

#12: Happy Birthday Update (Apr. 9 2024)

Includes All "I Love You Colonel Sanders!" Charcters, Backgrounds and Music, updates to the CM characters, Fixes the DRRA character effects not being accessible due to an effects.ini mishap, The Murder of Sonic the Hedgehog characters and backgrounds, a lot of low-quality backgrounds now made HD and additional fixes to base content characters by @RK123 - fixing mismatched buttons, broken inis, additional Kay witness sprites and more! It also includes the entirety of our DR RP soundtrack - this is the soundtrack compiled from the years of hosting DR RPs and re-using the same music pack and adding onto it! It includes a lot of songs from too many franchises to name!

Download: Google Drive

#11: Halloween Party Update (Oct. 31 2022)

Includes Corpse Party and Your Turn to Die characters, backgrounds from Corpse Party and Zero Time Dilemma, 999 backgrounds made HD, evidence from 999, VLR and ZTD, majorly expanded character effects using Danganronpa as reference, GM transition effects, Danganronpa: Reality Act themes, and an overhaul of base content characters fixing many long-standing issues!

Download: Google Drive

#10: Danganronpa Another Update (Sep. 20 2021)

Includes the Danganronpa Another Episode characters with touching-up, extra sprites and fixes by Crystal, Pandae, Fantos, Minx and Crystalwarrior.

Download: Google Drive

#9: 999th Update (Sep. 20 2021)

This updates the 999 Characters with massive quality and accuracy upgrade! Complete overhaul with extra sprites added for June, Santa, 9th Man and more! Want to create Extra sprites yourself? These characters were made with Aseprite, so you can open the source files from the Standalone Downloads! Also includes uniform character icons for the entire cast of KFO thanks to RK123 and fixes the missing VLR backgrounds.

Download: Google Drive

#8: 3 AM Patch (Aug. 19 2021)

This update includes KFO characters that might be replaced by vanilla content (if you install vanilla content ON TOP of KFO for some reason), as well as patches to existing characters. This also includes a properly updated filecheck.bat and includes the manifest.txt! Run this .bat file to check if you are missing any base content files. If you do, please send this file to one of the @Developers in the Discord!

Download: Google Drive

#7: Sound Optimizations (Jan. 7 2021)

This update finally brings some proper optimization to your content - all sound is converted from .wav to .opus, and included are awesome utilities (.bat files, download separately here) to clean up your content, as well as check if you are missing anything! Read the included BAT FILES README.txt for more info, or grab it from here.

Download: Google Drive

#6: Steins;Gate to New Year (Dec. 30 2020)

Happy New Year! This is a follow-up update to the Christmas Ronpa. Includes Steins;Gate content from the original VN, including characters in crispy .webp format and music converted to .opus with looping points. Huge thanks to Infinity and Beyond#9114 for leading this update!

Download: Google Drive

#5: Christmas Ronpa (Dec. 30 2020)

Merry Christmas, everybody! The Killing Fever Online development team and volunteers bring to you the Danganronpa 1 and 2 Content Update! This update brings all characters from Danganronpa 1 and 2 at 960x540 resolution with fixed issues and botches the games had (making all sprites consistent), fully looped gamerip-quality music, and brand new optimization algorithms that will assist in bringing you future updates faster and more condensed! (Up to 80% filesize has been shaved with zero quality impact for music!!!). If you want to test or use exclusively Danganronpa tracks, there is now an official music list called "DR" you can load using the music list commands. Update credits located in credits.txt where relevant. Do not remove credits.txt.

Download: Google Drive

Disclaimer

This server's role-plays may feature topics of fictional murder or suicide. Discussion of such topics in fictional context is permitted on the Discord server as well.

Privacy Notice

Killing Fever Online under no circumstances will leak your IP address or HDID to the public. The only two people with access to the database containing your IP address and HDIDs are Crystalwarrior and Longbyte01. Even so, Crystalwarrior pledges to only use the IPID system (obfuscation of your IP address using database index for the administration purposes) to the best of his ability.