givemethtoasloth / d2r-offline

Diablo II: Resurrected, Offline-mode patcher

Diablo II: Resurrected - Offline Patcher

A simple tool that remaps & bypasses Diablo II Resurrected module and then continues to patch connection functions to allow local gameplay.

More information about the crc32 bypassing and remapping can be found in my 'Bypassing World of Warcraft's Read-Only Code Protection (crc32)' blog post

Usage

.NET Framework v4.7.2 is required, which you can download at https://dotnet.microsoft.com/download/dotnet-framework/thank-you/net472-web-installer

Download the latest release (or clone a project and build using Visual Studio)

Copy both D2ROffline.exe and patches.txt to your Diablo 2 Resurrected game folder and then double-click D2ROffline.exe to start the tool.

That's about it!

NOTE: For those who want to add (or remove) patches, open the patches.txt and start modifying them.

Advanced Usage

Using D2ROffline.exe -FixLocalSave in the command line to patch your character or the legacy d2 character to enter the single-player game. The saved location will be C:\Users\<Username>\Saved Games\Diablo II Resurrected Tech Alpha.

Custom Patches

There is a neat little feature that allows you to use the patches.txt file and create your own patching rules, the patches.txt file MUST be in the same folder as the executable! This allows you to create your own patches.

Patches

Offline/Local patch, thanks to king48488

0xD4AD68:9090
0xD4E25F:909090909090
0xCAFB9D:90B001
0x597E1C:90909090909090

All classes & Multiplayer access, thanks to shalzuth

0xD615F2:909090909090909090909090909090909090909090909090909090: ~ show all calsses on load (shalzuth)
0x39FC03:9090909090909090909090909090909090909090: ~ allow chars to load (shalzuth)

Some more, Thanks to ejt & Crazyloon.

0x1EE3200:90: ~ allowLadderRunewords
0x1EE3201:90: ~ displayItemLevel
0x1EE31FF:90: ~ allowCowPortalWhenCowKingWasKilled
0x1EE3203:90: ~ enableUberQuest
0x1EE3202:90: ~ allowStatUnassignment
0x1EE3204:90: ~ allowSkillUnassignment (doesn't seem to be working)
0x1EE320D:90: ~ enableWorldEventOffline (Assume Uber Diablo - haven't tested)
0x1EE320E:90: ~ enableMultipleHirelings

Language patches to force the client into loading a language, thanks to Ferib (me).

0x1446C8:+0x00: ~ English *[enUS]*
0x1446C8:+0x270A4: ~ German *[deDE]*
0x1446C8:+0x270AC: ~ Spanish *[esES]*
0x1446C8:+0x270B4: ~ French *[frFR]*
0x1446C8:+0x270BC: ~ Italian *[itIT]*
0x1446C8:+0x270C4: ~ Korean *[koKR]*
0x1446C8:+0x270CC: ~ Polski *[plPL]*
0x1446C8:+0x270D4: ~ Russian *[ruRU]*
0x1446C8:+0x270DC: ~ Chinese (simplified) *[zhCN]*
0x1446C8:+0x270E4: ~ Chinese *[zhTW]*
0x1446C8:+0x270EC: ~ Spanish *[esMX]*
0x1446C8:+0x270F4: ~ Japanese *[jaJP]*
0x1446C8:+0x270FC: ~ Brazilian *[ptBR]*

Mutiplayer (TCP/IP)

Want to test out multiplayer mode? feel free to join my server at ferib.dev and come say hi!

Also, feel free to donate money in case you made it this far, this will keep me motivated to work on Diablo2Resurrected related projects and to keep the server going, thanks!

Download Game Files

Download this project: https://github.com/barncastle/Battle.Net-Installer/releases/tag/v1.3 Then use as BNetInstaller.exe --prod osib --uid osi_beta --lang enus --dir "C:\D2R"

Notices

This repository is for educational purposes only. Please do not perform any of the above actions on the Game client.

Diablo II and Diablo II: Resurrected are registered trademarks of Blizzard Entertainment. This project is not affiliated with Blizzard Entertainment in any way.

Credits

• Ferib (me): crc32 bypass
• king48488: Patch locations