![]() It can create standalone mod installers from changes to. ![]() sharedAssets, etc.) and assets bundles (.unit圓d, *.bundle, etc.) and converting them into the native Unity engine format. resS files.Ĭontent of these files can be unpacked with one of these tools : ToolĪssetRipper is a tool for extracting assets from serialized files (CAB-*, *.assets. You can use it to edit and debug assemblies even if you don't have any source code available.Īssets are stored in the. Work-in-progress tool to reverse unity's IL2CPP toolchain.ĭnSpy is a debugger and. NET debugger and assembly editor, dnSpy.ĭecompile and Compare. NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more). If DLLs are missing from the managed directory, try dumping them using MegaDumper tool. Extracting and editing codeĬ# and UnityScript files are compiled into the Assembly-CSharp.dll and Assembly-UnityScript.dll DLLs respectively, which can be found inside the Managed folder.ĭLLs can be decompiled using ILSpy, dnSpy, DotPeek or JustAssembly which allow modifying and recompiling assembly files. With * : The name of the main executable (.exe). assets)ĭLL file containing compiled UnityScript files resource and info such as audio size/offset still stored inside. Raw Assets found in the project resources folders and their dependencies are stored in this file (as well as raw audio files, even if outside of Resources folder in Unity, AudioClips with references to. Game assets are split into sharedassets and. Unity seems to load the "Assembly-CSharp.Data folder containing the game resourcesįiles containing game scenes data, each scene has its own file Double click the description to change it, and use "File" -> "Save" to create a ".ct" file you can load and use for other instances of the game (or to distribute).Īs vaguely mentioned above, the more traditional game hacking methods I'm used to (working with fixed offsets) don't work here. It can be added to CheatEngine by pressing Ctrl+Alt+A to open the "Auto assemble" window, pasting it in, then "File" -> "Assign to current cheat table" and closing the window.Įnabling the cheat (checking the box) should patch the memory address, and disabling (unchecking) it should revert it. Expanding "Assembly-CSharp.dll" to, and clicking on, "īasically it enables the Mono features, then finds "TakeDamage:Damage" and re-writes the assembly instruction using either the "dead" or "isPlayerCharacter" offset. Opening "Assembly-CSharp.dll" in dnSpy (File -> Open -> browse to the "Managed" folder and select the file), should then add "Assembly-CSharp.dll" and a few other UnityEngine items to the treeview on the left. In the case of the game 198X we're looking at, they can be found in: Steam\SteamApps\common\198X\198X_Data\Managed Conveniently these are typically compiled in to a "Assembly-CSharp.dll" or "Assembly-CSharp-firstpass.dll" file. NET apps.īecause we're interested in cheating the game's logic, and not necessarily messing with the Unity game engine itself, we're after the user's Unity "scripts". ![]() As mentioned above, Unity games are compiled with Mono, meaning they're. "Shadowplay" is a "ninja (runner?)" style game in which you have 5 lives and take damage when colliding with enemies or traps:īoth happen to use the same game logic for dealing with damage, for both the player and enemies (so can't just be NOP'ed out)ĭnSpy is a ".NET debugger and assembly editor", which allows you to view the source of. "Beating Heart" is a "beat-em-up" style game with health bars and you take damage when hit by enemies: ![]() The game we're going to hack is called " 198X" (part 1), an 80s-arcade themed game with several mini-games.ġ98X has several mini games built in, we're going to be hacking "Beating Heart" and "Shadowplay": exe where we can find a static memory offset to patch. Unlike more traditionally compiled games, these "scripts" are not simply compiled into the. Within the Unity engine, developers can add " scripts" (written in C#) which make up some of the game logic - these will often be our target. Under the hood Unity makes use of " Mono" which is a cross-compiler for DotNet. ![]() In this post I'm going to explore a few ways to hack games written using Unity. ![]()
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