No. Z-Tack 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 Z-Tack on?

Z-Tack is available on Atari 2600.

When did Z-Tack release?

Z-Tack was first released on December 31, 1983.

Z-Tack

Dec 31, 1983AdventureArcadeAtari 2600

Z-Tack — frequently asked questions

Is Z-Tack on Steam?: No. Z-Tack 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 Z-Tack on?: Z-Tack is available on Atari 2600.
When did Z-Tack release?: Z-Tack was first released on December 31, 1983.

About Z-Tack

As in Imagic's Atlantis, the city is under attack, but in this case, you are the invader. Destroy the installations while they try to stop you. Many of the installations are hidden in caverns, so you'll need a precision shot to hit them.

Summary via IGDB.

Z-Tack on Wikipedia

Z-Tack is a shoot 'em up for the Atari 2600 from Asia-based developer Onbase Co. and published under its Bomb label in 1983. The player controls an alien ship flying above a city with a goal of destroying bases nestled in the buildings. There are six different city-landscapes. The game received mixed reviews from critics and was described as an inverted version of Imagic's Atlantis.

Source: Wikipedia (text under CC BY-SA 4.0).

Game details

Platforms: Atari 2600
Developer: Bomb
Publisher: Bomb
Game modes: Single player
Themes: Action, Science fiction

Details via IGDB.

Collector value & authenticity

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

Loose

$45

Complete

$95

Sealed

—

Release record

Territory	Label	Catalog #	Rarity
North America Bomb	Standard	CA283	Extremely Rare
Europe Dynamics	—	—	—
Europe Home Vision	—	—	—
Europe ITT Family Games	—	—	—
Europe ITT Family Games	—	—	—
Europe Quelle	Short	—	—
Europe Quelle	Standard	—	—

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

Region: NA
Released: 1983
Controller: Atari Joystick
Players: 1 - 2
Authenticity: Low

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

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

An upside-down Atlantis from an Asian developer, released under at least six names.

Z-Tack is a 1983 shoot 'em up from Onbase Co., published under its Bomb label. You fly an alien ship above a city and destroy bases tucked among the buildings, across six different city landscapes. It received mixed reviews and was described as an inverted version of Imagic's Atlantis.

The same game was sold by several publishers under different names: Orbit-Base, Sky Scraper, Base Attack, Cosmic Town and Raumbasen-Attacke.

Cartridge & preservation record

Program size 4 KB, measured from the preserved dump.

Catalogue number as recorded for the physical release.

Before you buy

Low risk. No fakes are documented. Because the game appears under several titles, make sure the label in the photos matches the one the listing names, and confirm whether a copy is NTSC or PAL.