Concerning GCFScape

GCFScape is a small device that can open up as well as draw out from GCF data that are used by Heavy steam for game content storage space. It can be downloaded.

GCFScape 1.7.1 or much better is required to open up VPK files. To surf the base material of a video game making use of VPK, you need to open the index file pak_01_dir. vpk.


Idea: When you install GCFScape make certain you connect GCF documents with GCFScape so they'’ ll open immediately. The documents will certainly be offered symbols if this has actually been done.

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

Clicking the little switch, you can search the folders clicking on them so they broaden and show subfolders like so, after that clicking a folder will certainly show the contents to the right:

Right clicking a file will bring up a context menu where you can remove from:

Clicking this will bring up a home window where you can pick your conserve place:

Clicking OK will extract the file to your selected link gcf scape website

Sustained Formats

In addition to GCF data, GCFScape also supports Half-Life BSP, NCF, PAK, VPK, HEAP, and XZP files.


The complying with alternatives are offered inside the options food selection in GCFScape:


Enable verbose logging (made it possible for by default). Disable this alternative to decrease log output. This can be beneficial when you are removing huge amounts of files and also just wish to be informed of mistakes.

Submit Mapping

Enable Windows file mapping (enabled by default). File mapping is an effective method of arbitrary data access. Some running systems have issues with documents mapping (specifically Windows 98) and also may create errors; disable this alternative in such situations.

Quick Submit Mapping

Map the whole documents to memory (rather than pieces of it as required). Effectively caches the file in memory. Can speed things up if you have sufficient totally free memory. Some operating systems have problems with documents mapping (particularly Windows 98) as well as might create errors; disable this option in such cases.

Unstable Access

Enable unpredictable data gain access to (made it possible for by default). By default, Steam loads.gcf documents in read/write setting and also is liable to transform their components any time (as updates take place). Should this happen, GCFScape would certainly end up being unsteady and likely collision. Unpredictable accessibility enables you to open up GCF documents loaded in Steam at your own threat. It is typically secure and also can prove valuable for taking a look at which submits Vapor is updating.

Create Accessibility

Enable create documents access (handicapped by default). Write accessibility gives GCFScape the capacity to customize specific data as well as is not compatible with unstable access for the instability a mix of the two would trigger. This choice is required for GCF defragmentation.


In variation 1.5.0, GCFScape added the ability to verify GCF data. This procedure computes a collection of hybrid CRC 32 and Adler-32 checksums for every data within a GCF data and compares each checksum to the checksums precalculated and kept within the GCF documents. This attribute offers a fast option to Steam for inspecting GCF corruption and listing corrupt as well as insufficient data, however can not repair damaged GCF documents as Steam can.

To confirm all or part of a GCF data utilizing GCFScape, complete the complying with actions:

  1. Launch GCFScape.
  2. From the Documents menu, open your GCF data.
  3. Search to the top degree folder you wish to validate (root for the entire GCF data).
  4. Right click the folder and select Validate.
  5. Repeat steps 2-4 for every GCF documents you want to confirm.


In variation 1.6.0, the capacity to defragment GCF documents was added to GCFScape. This function was added after numerous tests by Nem suggested that Heavy steam'’ s built in defragmenter did not constantly completely defragment a game'’ s GCF data. In fact, Steam would certainly frequently falsely report a fragmentation of 0% when real fragmentation was as high or more than 10%, a value extremely detrimental to efficiency.

GCFScape specifies the fragmentation ratio to be the variety of used collections that are out of order split by the total number of made use of clusters. The first collection in a data can never ever be out of order, so a data that contains just one collection (typically < <8192 B) can never be fragmented. At 10% fragmentation, a normal ~ 785 MEGABYTES GCF file (roughly 100,000 collections at 8192 B per collection) would certainly require, typically, one look for procedure for each 80 KB of data check out. You can see the fragmentation of any type of file or folder (origin for the whole GCF file) by examining its buildings.

To defragment your GCF documents making use of GCFScape, finish the complying with steps:

  1. Closure Heavy steam.
  2. Introduce GCFScape.
  3. In the Options menu, allow Write Access as well as disable Volatile Access.
  4. From the Documents menu, open your GCF data.
  5. From the Tools food selection, choose Defragment.
  6. Repeat actions 4-5 for each and every GCF data you wish to defragment.

Keep in mind: The defragmentation process is quite sluggish, but can be canceled as well as resumed at any moment.

Running GCFScape

GCFScape calls for. INTERNET 4.0 (or later on), and Aesthetic C++ 2010 Runtime (x86 or x64) to run.

These requirements relate to all operating systems, MacOS and Linux individuals will require to install these in order to run GCFScape with Red wine.