Yellow Sub Demo was developed by Atari Incorporated., Released in 1983 Unreleased prototype.

Koffi – Yellow Kopter was developed by Ron LLoyd., Released in 2002 Homebrew game. Other Informations: Model RL5201 Creators: Programmer: Ron Lloyd Koffi – Yellow Kopter

David Crane’s Pitfall II – Lost Caverns was developed by Activision, Released in 1983 David Crane’s Pitfall II – Lost Caverns

An unfinished prototype game that was originally planned as a shooter but the last available version ends up being more an action/adventure game. There is an early build available of the shooter as well. You are a warrior named Meebzork who can practice [...]

## Description There is trouble in the mines! Volcanic activity has trapped numerous miners, and it is your job to save them. As Roderick Hero, you need to make your way through the dangerous mineshaft avoiding the dangerous creatures and lava, and find [...]

## Description _Curse of the Lost Miner_ is the sequel to Caverns of the Lost Miner, featuring more diverse cave graphics and updated sound and music. General gameplay remains the same. Once again the player controls a smiling head through a total of [...]

## Description The game is a homebrew homage to various games and Atari-related themes. Development began in 2013 as _GTIA Blast!_ , a tech demo that displayed the potential of the GTIA chip’s rarely utilized graphics mode. Later it evolved into a [...]

The game utilizes fractal technology to create the craggy mountains of an alien planet, where the visilibility was drastically reduced by the dense atmosphere. The player controls a fictional “Valkyrie” space fighter[2] (converted for search [...]