How to Hack Gwent - Witcher 3 Cheat Engine Tutorial

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United States Guided Hacking
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Published on ● Video Link: https://www.youtube.com/watch?v=9mGdPevwwXw


The Witcher 3: Wild Hunt
Game:
The Witcher 3: Wild Hunt (2015)
Category:
Tutorial
Duration: 26:40
11,747 views
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Learn how to reverse engineer Gwent in the Witcher 3 and create a basic Cheat Engine Code Injection Script to modify the game, resulting in an auto-win cheat.

Witcher 3 Cheat Engine: https://bit.ly/2ChszGr

This video was made for GH by TheHackerDev
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How to Hack Gwent - Witcher 3 Cheat Engine Tutorial

1. Scan for score value
- 4 byte int

2. Find where it is being accessed
- Look for write
- Things to keep in mind:
- Seeing [base + offset * size] indicates an array-like structure. This is usually how data is stored with other directly related data (like two sets of scores) inside of an entity object.

- Don't be thrown off by the number of times it is accessed. There are often other functions that are using the value in ways that you can't anticipate (eg enemy AI, NPCs with same values, etc.).

- Trying to modify the value may not do anything. In this case, it appears that it's being written before being read, or just overwritten at different times. If that doesn't work, try changing the instruction that overwrites the value (start with a nop).

3. Try NOP to validate that the instruction is the one we're looking for. In this case, it is actually a shared instruction (affects multiple values).

- Ideally, you want to find a non-shared instruction, but that's not always the case. So you just need to find a unique value/ID for the structure/value that you want to modify...

4. Find what other addresses this instruction accesses.
- BOOM. Score values found. Witcher 3 Cheat Engine.

5. Compare registers

1. Sometimes the automatic scan for commonalities doesn't find anything for some reason.
2. Manually select "show registers"
3. See difference in concrete value that's not a pointer - R15 (0 for our score, and 1 for opponent). This is our compare value/unique ID.

Witcher 3 Cheat Engine
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At this time, Guided Hacking has 11,747 views for The Witcher 3: Wild Hunt spread across 1 video. Less than an hour worth of The Witcher 3: Wild Hunt videos were uploaded to his channel, less than 0.38% of the total video content that Guided Hacking has uploaded to YouTube.