• Action
• Compilation
• Puzzle

===========================================================================
Title                   : Cyber Purge (v1.00-v1.11)
Filename                : CYBERPRG_v1.00-v1.11.zip
Release date            : February 16, 2022
Author                  : The Green Herring
Description             : For the first anniversary of Cyber Purge, this
                          is a historical upload package of every version
                          of the game ever released up to version 1.11.
                          This includes versions that lasted mere hours
                          before being replaced, and the version used in
                          the Worlds of ZZT livestream (v1.07).

                          While the most significant changes were fixing
                          various bugs, the text was also updated in
                          several ways between versions. In particular,
                          versions prior to v1.10 contained an entirely
                          different characterization of Darkscythe in his
                          final scene; and all versions prior to v1.12
                          had the action of the Control Room take place in
                          a single board, which had to be split into two
                          to fit in the new text in v1.12.

                          Versions prior to v1.07 also featured art boards
                          with a higher level of detail using element 69,
                          an undefined element rendered as white-on-gray
                          text, which had the unfortunate side effect of
                          crashing DOS depending on what you did prior to
                          viewing them. This was undone in v1.07 for full
                          compatibility with DOS machines, at the cost of
                          some graphical detail.

                          These versions are uploaded of my own volition
                          for archival purposes, as v1.12 makes
                          significant changes to the dialog and narrative
                          sequences to flesh out the story much further
                          than any version prior to it, and it is
                          recommended to play through v1.12 even if you
                          have already played a prior version of the game.
Engine required         : ZZT 3.2 and derivatives
                          (CleenZZT or ClassicZoo 4.22+ recommended)
===========================================================================

* Content Warning *

This game contains content that may not be suitable for all players,
including references to the regime of Nazi Germany and its crimes against
humanity. Versions prior to v1.08 were particularly blunt with these, and
were toned down in subsequent versions.

Also, in versions prior to v1.08, no content warnings were included.
Starting with v1.08, besides the warnings being included, these materials
are filtered out of the game by default, and it can be played and
understood without them. However, if you would like to see intense and
objectionable material when playing, you can enable them from the opening
menu, or enter "?-filter" during gameplay. You can then enter "?+filter"
to reenable it.

* Crash Warning *

In versions prior to v1.07, the art boards have a chance of crashing DOS
depending on what you did prior to viewing them due to using element 69,
an undefined element rendered as white-on-gray text. These are only safe
to view in Zeta using ZZT 3.2, and in ClassicZoo 4.22+, which fixes the
crashes caused by undefined elements by default.

* Difficulty Warning *

This game may be a little tough! You may have to fight fast-firing foes in
tight spaces, and shoot out their bullets with your own. You may reduce
the game speed to get through a difficult part of the game if you have to,
but please return to normal speed when you're through!

* Construction *

Build Time              : July 7, 2020 to February 16, 2021
                          (first version)
                          February 16, 2021 to February 16, 2022
                          (subsequent versions and this package)
Editor(s) used          : ZEdit2
Tested With             : Zeta
Runs on DOS?            : v1.06 and earlier -
                            Yes, but viewing the art boards will
                            potentially crash DOS!
                          v1.07 and later -
                            Yes, though you may need a 486 to run the
                            game at full speed

* Changelog *

1.00 (February 16, 2021)
- Initial release.

1.01 (February 16, 2021)
- Fixed a programming oversight allowing part of Sector Gamma to be
  skipped (reported by Lancer-X)

1.02 (February 17, 2021)
- You can no longer skip triggers in Sector Gamma, Delta and P by
  pause-moving through transporters (reported by RT-55J)
- Sectors Delta and P had their structures altered to facilitate the
  above change
- Fixed an imperfect reset in Sector P that would make one of the puzzles
  unwinnable (reported by Zephyr)
- Fixed an unclued item in Sector P (reported by Zephyr)
- Sector P boss updated
- Optimizations and typo fixes

1.03 (February 18, 2021)
- Simplified the coding of Sector Beta boss fight to reduce likelihood of
  the boss getting hung up on invisible objects
- Sector Beta boss and graphics updated
- Sector P now supports weird edge cases when resetting
- Fixed remaining pause-teleport bugs
- Minor writing revisions throughout the game

1.04 (February 18, 2021)
- Fixed softlock in Sector Delta which would occur if you left the first
  room without collecting the first key

1.05 (February 19, 2021)
- Fixed mysterious exit glitch on story boards

1.06 (February 20, 2021)
- Fixed softlock via programming error in Sector P (thanks kkairos)

1.07 (March 5, 2021)
- Revised art boards (story boards and ending) to fix fatal DOS
  compatibility issues (thanks asie)
- Fixed minor graphical inconsistencies
- Minor writing revision in secret area

1.08 (March 14, 2021)
- Added content warning and filter, which should have been there from the
  beginning
- Added minor dialog check to Sector Delta to see if all centipedes were
  stomped by the end of the level
- Fixed a wall tile disappearing in Sector Delta (thanks Dr. Dos)
- Fixed text running too quickly during an ending board (thanks Dr. Dos)
- Secret pamphlet changed to a paginated booklet

1.09 (March 14, 2021)
- Fixed a missing black-on-black tile in the cavern which allowed you to
  walk outside the playable area and softlock yourself
- Fixed logic for dialog check

1.10 (March 21, 2021)
* Fixed performance issues partway through Sector C
* Fixed unintentional skip in Sector P
* Foolproofed the boss fights of the four beginning sectors
* Optimized conversation dialogs
* Strengthened filter
* Revised cavern and ending text

1.11 (September 19, 2021)
* The game's conditional checks and other processing-intensive ZZT
  behaviors have been heavily optimized, enabling weaker machines to run
  the game with few hitches (a 486 is the minimum best for this game)
* Fixed a continuity error in Sector Beta's dialog
* Fixed a softlock in the Labyrinth that would occur while playing in
  ClassicZoo (or any engine other than [Cleen]ZZT 3.2) due to memory
  layout differences (thanks Agent Orange, asie)
* Small progression change in Sector C (you now collect a cyan key but
  progression is otherwise identical)
* BBS-style FILE_ID.DIZ added (with fancy code page 437 ANSI art)
* Minor text edits

* Copyright / Permissions *

This work is (C) 2021 The Green Herring and is licensed under a Creative
Commons Attribution-ShareAlike 4.0 International License. To view a copy
of this license, visit https://creativecommons.org/licenses/by-sa/4.0/.

* Where to get the file that this text file describes *

The Usual: https://museumofzzt.com/