GCFScape is a little device that can open and remove from GCF files that are made use of by Steam for video game material storage. It can be downloaded and install.

GCFScape 1.7.1 or far better is required to open up VPK files. To surf the base content of a game making use of VPK, you must open the index data pak_01_dir. vpk.


Suggestion: When you install GCFScape ensure you connect GCF files with GCFScape so they'’ ll open immediately. The data will be given icons if this has actually been done.

When a GCF is opened, the program will certainly look like this:

Clicking the little switch, you can browse the folders clicking them so they broaden and also show subfolders like so, after that clicking a folder will reveal the components to the right:

Right clicking a documents will certainly bring up a context menu from where you can extract from:

Clicking this will bring up a home window where you can select your conserve area:

Clicking OK will certainly remove the file to your picked place.by link gfc scape website

Supported Formats

Along with GCF data, GCFScape additionally sustains Half-Life BSP, NCF, PAK, VPK, HEAP, and also XZP files.


The following choices are readily available inside the options menu in GCFScape:


Enable verbose logging (made it possible for by default). Disable this option to lower log outcome. This can be valuable when you are removing big quantities of data as well as just wish to be informed of mistakes.

File Mapping

Enable Windows file mapping (allowed by default). File mapping is an effective method of arbitrary data accessibility. Some running systems have issues with data mapping (in particular Windows 98) as well as might produce mistakes; disable this choice in such instances.

Quick Submit Mapping

Map the whole file to memory (as opposed to pieces of it as required). Successfully caches the data in memory. Can speed things up if you have sufficient cost-free memory. Some operating systems have issues with data mapping (in particular Windows 98) and might create errors; disable this choice in such instances.

Unpredictable Accessibility

Enable unstable data access (enabled by default). By default, Vapor loads.gcf data in read/write setting as well as is reliant alter their contents at any moment (as updates occur). Need to this happen, GCFScape would certainly become unsteady and also likely accident. Unpredictable access permits you to open GCF documents filled in Vapor at your very own threat. It is typically secure as well as can prove useful for taking a look at which submits Heavy steam is updating.

Compose Access

Enable create file gain access to (impaired by default). Create accessibility provides GCFScape the capacity to customize particular data and is not suitable with unstable accessibility for the instability a combination of the two would certainly cause. This choice is needed for GCF defragmentation.


In version 1.5.0, GCFScape included the capability to verify GCF files. This procedure calculates a collection of crossbreed CRC 32 and Adler-32 checksums for each documents within a GCF documents and compares each checksum to the checksums precalculated and saved within the GCF file. This attribute provides a quick alternative to Steam for inspecting GCF corruption as well as listing corrupt as well as incomplete files, yet can not repair damaged GCF data as Steam can.

To validate all or part of a GCF file making use of GCFScape, complete the complying with steps:

  1. Launch GCFScape.
  2. From the Data food selection, open your GCF data.
  3. Search to the top level folder you want to validate (root for the entire GCF data).
  4. Right click the folder as well as pick Validate.
  5. Repeat steps 2-4 for every GCF documents you desire to validate.


In version 1.6.0, the capability to defragment GCF files was added to GCFScape. This attribute was added after several tests by Nem suggested that Steam'’ s integrated in defragmenter did not always totally defragment a game'’ s GCF data. Actually, Steam would commonly falsely report a fragmentation of 0% when real fragmentation was as high or more than 10%, a worth very harmful to performance.

GCFScape defines the fragmentation ratio to be the number of made use of collections that are out of order divided by the complete variety of used clusters. The first collection in a documents can never ever be out of order, so a data that includes only one collection (typically < <8192 B) can never ever be fragmented. At 10% fragmentation, a typical ~ 785 MB GCF file (approximately 100,000 collections at 8192 B per cluster) would certainly need, on average, one seek operation for every 80 KB of information check out. You can watch the fragmentation of any data or folder (origin for the whole GCF file) by checking its homes.

To defragment your GCF documents using GCFScape, finish the adhering to steps:

  1. Closure Steam.
  2. Introduce GCFScape.
  3. In the Options menu, allow Write Accessibility and disable Volatile Accessibility.
  4. From the Documents food selection, open your GCF data.
  5. From the Devices menu, select Defragment.
  6. Repeat actions 4-5 for every GCF data you desire to defragment.

Note: The defragmentation process is fairly slow, however can be canceled and also returned to any time.

Running GCFScape

GCFScape requires. INTERNET 4.0 (or later on), as well as Aesthetic C++ 2010 Runtime (x86 or x64) to run.

These requirements apply to all running systems, MacOS as well as Linux individuals will certainly require to install these in order to run GCFScape with A glass of wine.