Is Gamma-Attack on Steam?

No. Gamma-Attack is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.

What platforms is Gamma-Attack on?

Gamma-Attack is available on Atari 2600.

When did Gamma-Attack release?

Gamma-Attack was first released on February 1, 1983.

Gamma-Attack

Feb 1, 1983ShooterAtari 2600

Gamma-Attack — frequently asked questions

Is Gamma-Attack on Steam?: No. Gamma-Attack is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.
What platforms is Gamma-Attack on?: Gamma-Attack is available on Atari 2600.
When did Gamma-Attack release?: Gamma-Attack was first released on February 1, 1983.

About Gamma-Attack

You are the commander of the only GAMMA ship in this stellar field. The Vegan war fleet has taken control of your GAMMA outpost planet and is defending it with Vegan laser pulse tanks. This planet is the only inhabitable planet in this star system, and you must stay there and fight the Vegans as long as you can.

Summary via IGDB.

Game details

Platforms: Atari 2600

Details via IGDB.

Collector value & authenticity

Atari 2600 · PriceCharting sold data · Verified 2026-10-06

Loose

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Complete

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Sealed

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Release record

Territory	Catalog #	Rarity
North America Gammation	GA1003	Unbelievably Rare

Source: Catalog numbers, label types, rarity, controllers and player counts: AtariAge 2600 software database

Region: NA
Released: 1982
Controller: Atari Joystick
Players: 1
Authenticity: High

Not in Atari 50 — other compilations and plug-and-plays are not tracked hereHigh counterfeit risk

Atari 2600 prices, all games & how to spot a fake

A 1982 Gammation mail-order cartridge with one known original copy, so almost anything offered is the 2010 run or a reproduction.

Gamma-Attack was developed by Robert L. Esken Jr. and published by Gammation in December 1982 as a limited mail-order release. Only one original copy is reported to be known, a status recorded by Guinness.

In 2010 the programmer issued 100 signed reproductions himself. Those are legitimate collectibles in their own right, but they are not 1982 originals, and the priced Gamma-Attack on the market is that 2010 run.

How it was made

Developed by Robert L. Esken Jr. and published by Gammation in December 1982. In 2010 the programmer issued 100 signed reproductions.

Cartridge & preservation record

Program size 2 KB, measured from the preserved dump.

Catalogue number as recorded for the physical release.

Worth knowing

One known copy. Only one original Gamma-Attack cartridge is reported to be known, a status recorded by Guinness. Its programmer later made 100 signed reproductions in 2010.

Before you buy

High risk. With one known original, any copy offered as a 1982 original is almost certainly the programmer's 2010 signed run or an unofficial reproduction. Reproductions of Gamma-Attack were documented being sold alongside a faked Red Sea Crossing in 2015. If you want the 2010 signed run, check for the signature and buy it as what it is. One AtariAge collector reports that the genuine original has an EPROM board and a straight-edged paper label, so those features do not prove a copy is fake or real here; that claim rests on a single forum post. A claimed original needs documented provenance, not just photos.