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Asset Acquisition

Sourcing Your Assets

The OpenClaw engine provides the modern code to run the game, but it doesn't include the game's original art, sounds, or levels. These copyrighted assets must be sourced from a legitimate copy of the 1997 game, Captain Claw.

The single most important file you need is This is a large archive file containing nearly everything the game needs to run, from Captain Claw's sword-slashing animation to the layout of the final level. Your goal is to find this file and place it where OpenClaw can find it.

You can get this file from several versions of the game:

  • The original 1997 CD-ROM release.
  • A digital version, such as the one available from .
  • An image of the original CD.

The Directory Structure

OpenClaw is particular about where it looks for game files. You can't just drop CLAW.REZ anywhere. After compiling or downloading the OpenClaw engine, you'll find a specific directory where the assets must live.

For all platforms you will need original CLAW.REZ game archive in Build_Release directory from original game

The required path is typically OpenClaw/Build_Release/. Your final folder structure should look something like this:

OpenClaw/
├── Build_Release/
│   ├── OpenClaw.exe  (or the executable for your OS)
│   └── CLAW.REZ      (the file you will add)
└── ...

Extracting and Verifying

Now, let's get the file. The process is straightforward.

From a CD or ISO:

  1. Insert the Captain Claw CD into your computer, or mount the ISO file.
  2. Open the disc in your file explorer.
  3. Find the CLAW.REZ file. It should be in the root directory of the disc.
  4. Copy CLAW.REZ and paste it directly into your OpenClaw/Build_Release/ folder.

From the GOG Version:

  1. Install the game using the GOG installer.
  2. Navigate to the installation directory. The default is usually C:\GOG Games\Claw.
  3. Locate the CLAW.REZ file within this folder.
  4. Copy the file and paste it into your OpenClaw/Build_Release/ folder.

Regardless of the source, the end result is the same: a single CLAW.REZ file inside the Build_Release directory alongside the OpenClaw executable.

Once the file is in place, you can do a quick check to verify its integrity. The original CLAW.REZ file is approximately 107 MB (or 112,611,328 bytes). If your file size is drastically different, it might be from a modified or incomplete version of the game, which could cause crashes or bugs in OpenClaw. If you suspect an issue, try copying the file from your source again.

With the assets correctly positioned, you're ready to run the game.

Quiz Questions 1/4

What is the relationship between the OpenClaw engine and the original 1997 game, Captain Claw?

Quiz Questions 2/4

What is the single most crucial file you need from an original copy of Captain Claw to use OpenClaw?