Qb

Qb is a homebrew puzzle-action game for the Atari 2600 by Andrew Davie, released by XYPE in 2001. A small hopping character rearranges blocks on the playing field to copy a pattern, while fruit, eggs and monsters get in the way. Davie first wrote the game for the Atari 800 computer in 1984 and brought it to the 2600 many years later. You can play it here in your browser.

Boulder Dash

This Boulder Dash is a homebrew Atari 2600 conversion of First Star Software’s 1984 computer game, made by Andrew Davie and Thomas Jentzsch and sold by AtariAge. It is not an original 1980s cartridge: the two programmers spent almost ten years on it, with First Star’s approval, and it was released as a limited run of 250 cartridges. The result is a surprisingly faithful version of a classic digging puzzle on a console that was never meant to handle it. You can play it here in your browser.