Unreal Engine 4 Decryption Tool

[Razor12911]

Update available

Changes

- Added block limiter (default 64 blocks), increase to catch larger streams, -b to change limit
- Added support for input with the same header structure as Rune II, -m2 for its usage

Notes

- Block limiter added speed, something I had forgotten in the other releases. You can set high values, it won't affect speed that much compared to before.

Usage

ue4dt.exe [parameters] [hexkey]

Parameters:

-c# = chunksize[k,m,g]
-b# = number of blocks
-m# = method (1 = games that use borderlands3, street figher v... format, 2 = games that use rune ii format)

Tests

On Street Fighter V:

ue4dt (0x5f6153346d665a4b384d3573354b5743324c7a325673466e474b4937617a676c):
Compressed 99 files, 43,843,420,522 => 43,843,420,522 bytes. Ratio 100.00%
Compression time: cpu 45.61 sec/real 718.01 sec = 6%. Speed 61.06 mB/s

xtool19 (precomp:deflate:c16mb,t4):
Compressed 1 file, 43,843,422,230 => 86,391,890,330 bytes. Ratio 197.05%
Compression time: cpu 62.52 sec/real 3501.19 sec = 2%. Speed 12.52 mB/s