Dead or Alive 6, 21:9 fix + reduced size

Modified binaries for Dead Or Alive 6 (Steam)

Note: I am aware that the patch only works during gameplay. It should not significantly affect anything in the MainMenu (except for low resolution, of course). Config Tool is useful ONLY if you have a steam_emu.

Disclaimer: This is not the complete game but an unpacked version of DOA6.exe. It is essential to own a valid DOA6 copy for this to work. I do not take responsibility for the usage of this .exe. Its sole purpose is to modify the internal aspect ratio from 16:9 to 21:9 for widescreen support, as well as reducing executable size, all rights belongs to KOEI TECMO GAMES CO. LTD. Please refrain from redistributing without linking to this repository or previous threads, it's crucial for individuals to create their own game patch if they choose to do so. I have limited knowledge of copyright matters, and I'm indifferent, but please avoid reusing this without referencing the sources. If you plan to create a patch yourself, check the credits; the Reddit thread contains the most up-to-date patterns.

Installation

Default steam path C:\Program Files (x86)\Steam\steamapps\common\Dead or Alive 6\

• Simply open game folder then locate and backup your DOA6.exe.

• Download the version you want for your game here

• Then place DOA6-{version}.exe to your game folder, rename it to DOA6.exe and run it. DOA6-low-res.exe for low resolution executable and DOA6-3440x1440.exe for 3440x1440 21:9

If you encouter any errors, open Steam and go to Dead or Alive 6 right click for Propreties > Installed Files > Verify integrity of game files Or just backup your original DOA6.exe. Never got issue with it and I don't think any update will ever release again for the game so you're fine using this if you install it proprely.

Unpacking&Repacking

• Unpacked SteamStub 3.1.x (using Steamless)
• Modified Assembly (x64dbg)
• Repacked with UPX (upx)

        File size         Ratio      Format      Name
   --------------------   ------   -----------   -----------
  44227728 ->  13027984   29.46%    win64/pe     DOA6.exe                                                            
Packed 1 file.


Removed: 29.8 MB

Modified const & patterns

Patching constant

Modify const 3FE38E39 in doa6.exe module

mov qword ptr ds:[rcx+14C],3FE38E39

replace the Hex data with:

48 C7 81 4C 01 00 00 8E E3 18 40   | for 3440x1440, or
48 C7 81 4C 01 00 00 26 B4 17 40   | for 2560x1080

For the secound search result.

00007FF6FF095399 | Disassembly: mov dword ptr ds:[rdi+1268],3FE38E39; 

replace the Hex data with:

C7 87 68 12 00 00 8E E3 18 40 for 3440x1440, or
C7 87 68 12 00 00 26 B4 17 40 for 2560x1080

Patching from pattern (CTRL+SHIFT+B) Search this Hex pattern:

C7 44 ?? ?? 80 07 ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? 

in doa6.exe module. There'll be about 5 results.

C7 44 ** ** 80 07.

The 80 07 is what we need to change to:

14 0A for 3440x1440, or

00 0A for 2560x1080

for example,

C7 44 24 28 80 07 00 00 

becomes

C7 44 24 28 14 0A 00 00.

Patching jmp rcx

(CTRL+SHIFT+B) Search for the pattern:

FF E1 ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? C7 44 24 30 ?? ?? 00 00 C7 44 24 34 ?? ?? 00 00

Still in doa6.exe module. not main thread. There'll be one result:

00007FF6FEE80F7C | Disassembly: jmp rcx

Binary > Fill with NOPs and select OK.

Then, look carefully at the highlighted row. A few addresses underneath it, there'll be a row with:

mov dword ptr ss:[rsp+30],320

Select that row, and then Edit it (CTRL+E); we need to change from:

C7 44 24 30 20 03 00 00 

to:

C7 44 24 30 70 0D 00 00 for 3440x1440, or
C7 44 24 30 00 0A 00 00 for 2560x1080

Then, underneath that row there'll be another row with

mov dword ptr ss:[rsp+34],1C2

Select that row, and then Edit it (CTRL+E); we need to change from:

C7 44 24 34 C2 01 00 00

to:

C7 44 24 34 A0 05 00 00 for 3440x1440, or
C7 44 24 34 38 04 00 00 for 2560x1080

Those rows from step 3 and 4 should now end with D70 and 5A0 or A00 and 438 instead of 320 and 1C2 respectively and depending on your resolution choice.

Credits

Huge thanks to https://www.wsgf.org/phpBB3/viewtopic.php?f=64&t=33019 (jackfuste post) and https://www.reddit.com/r/widescreengamingforum/comments/12t9w60/dead_or_alive_6_v122a_ultrawide_hack/