Threshold (video game)

Short description: 1981 video game

Threshold

Box cover with a C64 sticker

Developer(s)| On-Line Systems
Publisher(s)| On-Line Systems
Tigervision (2600)
France Image Logiciel (Thomson)
Designer(s)| Warren Schwader
Programmer(s)| Apple II
Warren Schwader
Ken Williams
Atari 8-bit
Peter Oliphant[1]
Platform(s)| Apple II, Atari 8-bit, Atari 2600, VIC-20, Commodore 64, ColecoVision, Thomson
Release| 1981: Apple, Atari, VIC
1982: 2600
1983: C64
1984: ColecoVision, Thomson
Genre(s)| Fixed shooter

Threshold is a space-themed fixed shooter written by Warren Schwader and Ken Williams for the Apple II and published by On-Line Systems in 1981.[1] Inspired by Sega's Astro Blaster arcade video game, Threshold introduces many enemy ship types and wave formations as the game progresses. Reviewers found the variety distinguished the game from the many similar shoot 'em ups.

Ports to other systems were released on ROM cartridge: Atari 8-bit family and VIC-20 in 1981, Commodore 64 in 1983, and ColecoVision and Thomson computers in 1984. An Atari 2600 adaptation was published by Tigervision in 1982.[2]

Schwader also wrote the 1983 Apple II platform game Sammy Lightfoot.[1]

## Contents

* 1 Gameplay
* 2 Development
* 3 Reception
* 4 References
* 5 External links

## Gameplay

The player controls a spaceship, the Threshold, using its laser weapon to destroy waves of alien attackers. When a wave is eliminated, another appears. As in Astro Blaster, firing the laser increases its temperature, and it cools when not in use. If the temperature bar fills completely, then the weapon cannot be used until it fully cools. Once per ship, pulling back on the joystick activates a "warp drive" that briefly slows the action.[3]

## Development

The game was inspired by Ken Williams playing an Astro Blaster arcade machine in a store and calling Warren Schwader. In an interview in Halcyon Days, Schwader said:

> Instead of trying to duplicate the game in every detail, I set out to just take the concept and run with it–after first playing Astro Blaster for hours on end though. No matter how hard we tried, we never could get to the end of that game. There were always more new creatures to discover and that kept us coming back. We set out to provide the same experience for Threshold players.[4]

It took two months to implement. Williams only worked on the project for two weeks of that time, writing the Apple II animation routines.[4]

## Reception

Threshold sold approximately 25,000 copies.[4] Tigervision's Atari 2600 port received a "Certificate of Merit" in the "Best Science Fiction/Fantasy Videogame" category of the 1983 Arcade Awards.[5]

Reviewing the Apple II original for Creative Computing, David Lubar wrote, "The animation in Threshold is superb", and he found the number of enemy types and waves to be a strong point.[6] The Book of Atari Software 1983 gave the Atari 8-bit port a B rating: "It's the usual scenario, with this exception: the game offers unusual depth and variety."[7] They found they sometimes mistook the stars in the animated background as enemy bullets. In Ahoy! magazine, R.J. Michaels led off his review with, "Only humor saves this game from being a run of the mill slide-and-shoot burn-the-alien-invaders game."[8]

Appraising the Atari 8-bit computer version, Electronic Games noticed the Astro Blaster connection and wrote "The graphics in Threshold are tremendous."[9] The reviewer disliked the loading that occurs every so often between levels and found the game overall too difficult.

## References

1. ↑ 1.0 1.1 1.2 Hague, James. "The Giant List of Classic Game Programmers". https://dadgum.com/giantlist/.
2. ↑ "Atari 2600 VCS Threshold". http://www.atarimania.com/game-atari-2600-vcs-threshold_16952.html.
3. ↑ "Threshold Manual (Atari computer version)". https://archive.org/details/agm_Threshold.
4. ↑ 4.0 4.1 4.2 Halcyon Days: Interviews with Classic Computer and Video Game Programmers. 1997. https://dadgum.com/halcyon/BOOK/SCHWADER.HTM.
5. ↑ "1983 Arcade Awards". Electronic Games 1 (11): 23. January 1983. https://archive.org/details/Electronic_Games_Volume_01_Number_11_1983-01_Reese_Communications_US/page/n21/mode/2up.
6. ↑ Lubar, David (April 1982). "Let the Games Begin". Creative Computing 8 (4): 56. https://archive.org/details/creativecomputing-1982-04-a/page/n57/mode/2up.
7. ↑ The Book of Atari Software 1983. The Book Company. 1983. p. 91. https://archive.org/details/book_atari_software_1983/page/n81/mode/2up.
8. ↑ Michaels, R.J. (March 1984). "Reviews: Threshold". Ahoy! (3): 65. https://archive.org/details/ahoy-magazine-03/page/n63/mode/2up.
9. ↑ Goldstein, Leigh (November 1982). "Computer Gaming: Threshold". Electronic Games 1 (9): 79. http://www.digitpress.com/library/magazines/electronic_games/electronic_games_nov82.pdf.

## External links

* Threshold for the Atari 8-bit family at Atari Mania
* Threshold at Gamebase 64
* Review in Antic
* Review in Softalk
* Review in Creative Computing
* Review in Creative Computing

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