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I have taken this from my own guide that I shared with the project KQ8FixWin11 as at the time of writing this, what they offered, has an issue with camera control

Here is an updated list of the config of my system I tested this on since a few things changed since I participated there!:

Windows 11 Pro 26H2, Nvidia 5070Ti@16GB VRAM, 32 GB RAM, AMD Ryzen 5 8400F@4.20Ghz, Monitor: KOORUI GP01 2K @165, FreeSync Premium enabled in monitor, G-Sync enabled in Nvidia App, game ready driver 621.01 , Global Settings: 162 FPS, G-Sync enabled, V-Sync enabled (in contrast V-Sync disabled if available within game).

Here is what I have done to get it working 100%

1. Install game off GOG Galaxy
2. Apply KQ8FIX11 patch from [Nov 28, 2025] in this bug thread!
3. start kq8fix.exe
4. disabled: among 3dfx (Glide): suppress WM_Size, enable: disable 3DFX
5. replace and adjust settings of new dgVoodoo2 like described by @samuelvary1 at Turning the in-game camera is very difficult #1 (comment) = version 87_6
6. swap settings of kq8fix.exe in 4) (i.e. vice versa enabled/disabled = back to default settings)
7. Run the game, intro FMV plays, close WMP, main menu displays. Stay at 640 x 480 and make all graphic improvements enabled.
8. Result: Game runs in correct aspect ratio = streched to 2K desktop resolution and camera turning with right click mouse movements work, too!

Before 26H2, the game worked fine even without any patches, like the all-in-one patch, however since 26H2, an additional patch is needed.

So here comes my own guide to get it working properly:

1. download the all-in-one patch By |)in-d1n
2. install it into the game’s folder
3. run it from the game’s “LaunchGB.exe” and select “Clone Campaign” -> Widescreen -> Enable
4. download and apply the cnc draw upscaler from gamepwn22
5. copy it into the game’s .\Game\ subfolder
6. do not change any settings
7. Run the game from now on using LaunchGB.exe
8. In the game’s settings menu of either the default or Clone Campaign, select the highest resolution and start a mission of choice.
9. The game will be adjusted to fullscreen, no longer needing to change the display’s resolution to 1080p or less! Tested in 2K resolution!

Culpa Innata used to work fine in earlier builds of Windows 11, however on 26H2, the game starts with black sceeens, only sound can be heard.

As we have to fiddle with the game files anyway to make it fully work, why not also restoring the uncut content and add support for widescreen resolutions along the way.

We are referring to the Uncut Patch Guide on Steam:

1. Extract the contents of the Culpa Innata Uncut Patch folder into the game’s installation directory in Steam and overwrite the files when asked.
   
2. Now we download and apply the Culpa Innata Fix (v2), which adds support for widescreen resolutions and removes the film grain effect:
3. Download the latest dgVoodoo2
4. Copy the following files from its ZIP archive to the game’s folder root:
5. \MS\x86\D3D8 & \dgVoodooCpl.exe
6. Find the dgVoodoo2 provided D3D8.dll that you placed in the game’s folder. Rename it to “D3D8_dgvoodoo.dll” (needs to be that exact name).
7. .Add the widescreen patch’s D3D8.dll where the dgVoodoo2 one used to be.
8. Make sure the config path within dgVoodoo2 is set to the game’s folder root.
9. You need to set an exact resolution in dgVoodoo2‘s DirectX tab – not one of the named special resolutions. For example, enter “1920×1080”, not “Max FHD”.
10.  Confirm that dgVoodoo.conf exists in the game’s install folder.
11. Run the game -> enable and check full Uncut subtitles: Go to the settings in the main menu -> Click on Captions, then on On.
12. after the intro (right click to skip it), you are in the main hall -> Click on the plants in the background. -> captions should be visible like this: “My poor plants, needy of my attention. At least they are maintenance free” (Because in the uncut version, there are Captions for all dialogue, even the one-liners Phoenix says from time to time). However she only says this once.

The story of the mods and patches and DLCs for Split/Second on PC (Windows 11), Linux/Steam Deck is a complex and complicated one.

This post tries to reflect the reality of November 2026 and all its advantages and disadvantages and nuances.

It turns out, up until summer 2022, there used to be a “DLC by Elysium” mod, bringing all the extra content like cars and tracks from the XBOX version of the game to the PC Steam version. (also called “SplitSecondUltimate14551” or “Quarry track mod”) which ever since has been removed.

It ever since has been replaced by something called “Xenon”, which can be downloaded here.

According to my memory from the top of my mind, I did download a savegame file for the old DLC mod because there is a bug in the game that does not let you save your progress after season 1 so you will never have season 2 and further unlocked. I have had repeatedly tried.

Unfortunately the savegame collection available for download on the same page as the Xenon mod, will have all races unlocked and marked as won in 1st place, i.e. you cheated your way through the game. Not my style, hence I will rather stay with the old mod and the old savegames then having to re-do all my progress again from scratch.

Only minor disadvantage is, the gamepad is not working for navigation in the menu of the game, and for XInpuit you have to manually map each button first within the game.

Newly available for the stock game/the old DLC Mod and the new XENON DLC mod, is a 60 fps mod from October 2026 by ccollomb.

Also available is an online mod from November 2025 by Yellow, re-estsblishing online multiplayer for PC and SteamDeck (requires the Xenon DLC Mod to work)

If you are after the obsolete SplitSecondUltimate14551 DLC mod and/or its savegames, feel free to email me, I kept them stored.

I already wrote about disabling hi-res in the settings of the game to make it run.
New with 26H2 is, it won’t anymore start if more than 1 monitor is enabled in Windows 11 26H2, disable all secondary monitors makes it run again!

About Yesterday, I wrote in the same post how to patch a sound bug introduced with censorship done for the GOG and Steam releases. New for Windows 11 26H2 is the neccessatiy to use dgVoodoo2 or else it will hang at the first loading animation.

New is, that also now The Next BIG Thing requires the use of dgVoodoo2 or else it will hang at the first loading animation, too.

This game has the common issue of some bink videos freezing in full screen, since manually putting it to Window mode is not possible the only way is to ALT, CRTL and DEL it then return to the game and the rest of the splash screens past the first “Focus” one play without freeze.

Since the video files are packed, there is no easy workaround of the specific viedeo file causing the issue.

Hence, the easiest solution without going too much in your hair is using dgVoodoo2 again,

Just disabling the watermark and it successfully scales the native resolution of the game of 1280 x 720 to your Windows desktop’s one.

Since from now on, GSync works with my monitor, it is by default enabled, means in Nvidia’s APP, the global setting is 162 Hz which is just shy of the max refresh rate of 165, and VSync on while in the modern games themselves, vsync should be off.

Anyway, as reported earlier, e.g. in my System Shock Classic post, older DOSBOX 0.74 version which is the one mostly shipped with DOS games in Steam, only has a blinking cursor in full screen.

It’s usually a DOSBox fullscreen/renderer incompatibility with modern Windows, the NVIDIA driver, or a variable-refresh display.

The fix for this is changing in the config file

[sdl]
fullscreen=true
fulldouble=false
output=opengl

the output type is usually the culprit

output=opengl worked, however now it breaks off the intro at saying “Attention” at carmageddon max pack in dos box.

changing “core=dynamic” into core=normal fixes that.

If you want to have it easier, get the GOG version, this already has its own patches enabled done by CD Project Red’s preservation team of classic games included and has no tinkering requirement.

I will base what I have done to make the game work again on the Steam release tho, I will point the moment out, where you can find hints what additonal requirements are needed for the original CD retail release.

After installing the game and setting the highest resolution possible within the game, it is worth taking a look at the PCGamingWiki entry, which under “post-processing” mentions the “Peixoto patch”, which however is linked incorrectly and even if you google it, you find a PCGamingWiki download from 2018 which doesn’t work in Windows 11 at all. The corect link is https://www.patreon.com/c/u44312848/about, it requires you to join the Patrion but this is free, it leads you to the creator’s WineHoooks’ GitHub, which is the new name of this patch collection.

As the time of writing this, the latest version is 0.12.22 from 2025.

Unfortunately it doesn’t work out of the box, but once you extracted it’s archive, I suggest to run WineHooks.bat at least once, because it will ask to grand permission to your firewall a couple of times and then loads its web frontend automatically.
However, downloading profiles for the games will make the tool unresponsive on clicks, as it fails to create the necessary folders as follows:

C:\Users\username\Documents\WineHooks\CheatTables
C:\Users\username\Documents\WineHooks\Games
C:\Users\username\Documents\WineHooks\Help
C:\Users\username\Documents\WineHooks\Profiles
C:\Users\username\Documents\WineHooks\Scripts

as mentioned in the open bug report #2

After that, you will ask to point to the path and exe of the game.

You can use the properties of the game in your Steam library and open the game’s installation folder this way.

The GUI odf the WineSockets also mentions which additonal steps are necessary for the retail CD version to make it work!

Once you have done that the patcher will start and patch the game files.

It will end in a Steam error that the game cannot be run, but you can run it from within Steam again and it will simply work flawlessly now.

I had to enable “Dynamic Super Resolution” so the Bink intro videos wouldn’t be stuck in full screen!

If you don’t want to use Super Resolution, you can get away with the black borders, i.e. being stuck at 4:3 aspect ratio by applying the nemesis2000 widescreen fix, applying both patches will give you the same experience the GOG release offers! 🙂

The main issue with the game is, that none of the cut scenes, which are bink videos run smoothly by default on Windowes 11 26H2.

The solution is to simply enable compatibility mode for Windows XP Service Pack 3 for the game’s exe file!

Additionally, you can get AI Upscaled versions of the bink videos in full HD 1080p from this Nexus mod

The solution to the stutter can be found in this Steam guide and is basically, that ReBar is disabled by default in the Nvidia profile of the game but it’s not effective, so if you are using an Nvidia card, you have to use the NvidiaProfileInspector to enable it, and then disable it again, as the guide points out:

 Simply scroll down to ReBar Enable, which is in section 5. This is set to “Disabled” by default. Put it to “Enabled”, save the changes and then put it to “Disabled” again and save again. This fixed it for me. It makes really no sense tho.