The following is footage of Space Miner, developed for the IBM PC by Charles Karp in 1983. It is not a complete playthrough, but rather just enough gameplay to serve as a reference for how the game performs on the original hardware it was developed for.
This footage was recorded from an IBM PC (8088 CPU running at 4.77MHz) with a ("new-style") CGA card. The audio was tapped from the PC speaker and the video was recorded from the CGA composite output. The result was post-processed from 30i to 60p; all source frames are intact.
The graphics in this particular game were designed primarily for RGB displays, so the composite output colors seen here are not strictly as the developer intended.