UE4 Pak File Examples

This repository contains examples for Unreal Engine 4 Pak files used in testing.

Encryption key

aWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWk=

Table 1. Pak Content

File	Content
original-files/test.txt	"foo bar"
original-files/lorem/lorem-ipsum.txt	12221 chars of lorem ipsum
original-files/image/kitten_on_walkway.jpg	image from creativecommonsstockphotos CC0 - Public Domain

Downloading pak’s

You can download pre-packed pak files using the provided script

./download.sh

Generating paks

To generate pak files you need to have the following UE4 versions installed:

• 4.2

• 4.15

• 4.19

• 4.20

• 4.21

• 4.24

• 4.25

• 4.26

Adjust the .env file to represent your local paths. Then execute

./generate.sh

Full List

Table 2. Version 2 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v2/test_v2.pak	❌	❌	❌
pak/v2/test_compressed_v2.pak	❌	❌	✔️
pak/v2/test_encrypted_v2.pak	❌	✔️	❌
pak/v2/test_compressed_encrypted_v2.pak	❌	✔️	✔️

Table 3. Version 3 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v3/test_v3.pak	❌	❌	❌
pak/v3/test_compressed_v3.pak	❌	❌	✔️
pak/v3/test_encrypted_v3.pak	❌	✔️	❌
pak/v3/test_compressed_encrypted_v4.pak	❌	✔️	✔️

Table 4. Version 4 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v4/test_v4.pak	❌	❌	❌
pak/v4/test_compressed_v4.pak	❌	❌	✔️
pak/v4/test_encrypted_v4.pak	❌	✔️	❌
pak/v4/test_compressed_encrypted_v4.pak	❌	✔️	✔️
pak/v4/test_encindex_v4.pak	✔️	❌	❌
pak/v4/test_compressed_encindex_v4.pak	✔️	❌	✔️
pak/v4/test_encrypted_encindex_v4.pak	✔️	✔️	❌
pak/v4/test_compressed_encrypted_encindex_v4.pak	✔️	✔️	✔️

Table 5. Version 5 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v5/test_v5.pak	❌	❌	❌
pak/v5/test_compressed_v5.pak	❌	❌	✔️
pak/v5/test_encrypted_v5.pak	❌	✔️	❌
pak/v5/test_compressed_encrypted_v5.pak	❌	✔️	✔️
pak/v5/test_encindex_v5.pak	✔️	❌	❌
pak/v5/test_compressed_encindex_v5.pak	✔️	❌	✔️
pak/v5/test_encrypted_encindex_v5.pak	✔️	✔️	❌
pak/v5/test_compressed_encrypted_encindex_v5.pak	✔️	✔️	✔️

Note	Version 6 PAK files are not used in any mayjor UE4 version and therefore not included here.

Table 6. Version 7 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v7/test_v7.pak	❌	❌	❌
pak/v7/test_compressed_v7.pak	❌	❌	✔️
pak/v7/test_encrypted_v7.pak	❌	✔️	❌
pak/v7/test_compressed_encrypted_v7.pak	❌	✔️	✔️
pak/v7/test_encindex_v7.pak	✔️	❌	❌
pak/v7/test_compressed_encindex_v7.pak	✔️	❌	✔️
pak/v7/test_encrypted_encindex_v7.pak	✔️	✔️	❌
pak/v7/test_compressed_encrypted_encindex_v7.pak	✔️	✔️	✔️

Table 7. Version 8 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v8/test_v8.pak	❌	❌	❌
pak/v8/test_compressed_v8.pak	❌	❌	✔️
pak/v8/test_encrypted_v8.pak	❌	✔️	❌
pak/v8/test_compressed_encrypted_v8.pak	❌	✔️	✔️
pak/v8/test_encindex_v8.pak	✔️	❌	❌
pak/v8/test_compressed_encindex_v8.pak	✔️	❌	✔️
pak/v8/test_encrypted_encindex_v8.pak	✔️	✔️	❌
pak/v8/test_compressed_encrypted_encindex_v8.pak	✔️	✔️	✔️

Table 8. Version 9 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v9/test_v9.pak	❌	❌	❌
pak/v9/test_compressed_v9.pak	❌	❌	✔️
pak/v9/test_encrypted_v9.pak	❌	✔️	❌
pak/v9/test_compressed_encrypted_v9.pak	❌	✔️	✔️
pak/v9/test_encindex_v9.pak	✔️	❌	❌
pak/v9/test_compressed_encindex_v9.pak	✔️	❌	✔️
pak/v9/test_encrypted_encindex_v9.pak	✔️	✔️	❌
pak/v9/test_compressed_encrypted_encindex_v9.pak	✔️	✔️	✔️

Table 9. Version 11 Pak Files

File	Index Encrypted	Data Encrypted	Compressed
pak/v11/test_v11.pak	❌	❌	❌
pak/v11/test_compressed_v11.pak	❌	❌	✔️
pak/v11/test_encrypted_v11.pak	❌	✔️	❌
pak/v11/test_compressed_encrypted_v11.pak	❌	✔️	✔️
pak/v11/test_encindex_v11.pak	✔️	❌	❌
pak/v11/test_compressed_encindex_v11.pak	✔️	❌	✔️
pak/v11/test_encrypted_encindex_v11.pak	✔️	✔️	❌
pak/v11/test_compressed_encrypted_encindex_v11.pak	✔️	✔️	✔️