IBM PC Games on a Hercules card

Just some very quick tests on a noname Hercules Graphics clone card on an IBM 5170. The system sees the card as a normal text-only MDA card. 00:00 Hercules diagnostics 00:34 Where in the U.S.A Is Carmen Sandiego? 03:35 Simcity E1.12 06:00 Space Quest II: Vohaul's Revenge 13:37 Zak McKracken The Hercules Graphics Card (HGC) is a computer graphics controller formerly made by Hercules Computer Technology, Inc. that combines IBM's text-only MDA display standard with a bitmapped graphics mode. This allows the HGC to offer both high-quality text and graphics from a single card. The IBM 5151 monochrome display monitor is designed for use with the IBM MDA adapter. It supports a screen refresh of 50Hz with 350 vertical lines and 720 horizontal lines at TTL-compatible frequency of 18.432 kHz. In short, it was designed to display sharp, high resolution text characters only.