The First Slice

Below are the test chambers from PortalZ: The First Slice., the 2009 PortalZ beta prevew.

To play The First Slice:

• 1. Download the necessary materials and sounds.

  2. Save all the BSP files and the BNS file below to one of these locations:

  3.     Windows: C:\Program Files\Steam\steamapps\common\portal\portal\maps

  4.     MacOS: ~/Library/Application Support/Steam/steamapps/common/portal/portal/maps

  5. (On Windows 64-bit, replace “Program Files” with “Program Files (x86)”.  On older versions of Steam, replace “common” with your Steam username.)

1. Launch Portal.

2. Select “Bonus Maps”.

3. Select PortalZ: The First Slice.

4. (You can also open a specific chamberfrom the developer console by running "map z_demo_chamber_#", where "#" is the number of the chamber.)

Alternatively, you can download PortalZ: The First Slice from one of these external sites as a ZIP file and follow the included instructions:

• https://www.moddb.com/members/zmyaro/addons/portalz-the-first-slice

• https://www.mediafire.com/file/s10oaehtlsp7aev/zmappack_demo.zip/file

Known issues in The First Slice:

• • Lighting is incomplete, missing, or may break in some chambers.

  • The door models in test chamber 10 sometimes disappear.  The doors are there, but will be completely white.

  • Chamber 05 is glitchy.  This is probably because Portal is not designed to do what I am trying to make it do the way I am trying to make it do it.

    • (Note from the future: This version of chamber 05 ended up being cut entirely, so feel free to just skip it.)