Caves of Venus

A space platformer game by Marc E.H. Dawson & Robert W. Tinman that takes place in the Caves of Venus, naturally. It has a relationship with The Nodes of Yesod, which wasn't programmed by Robert W. Tinman, but the sequel Arc of Yesod was, though CSDB shows that The Nodes of Yesod was an update over Caves of Venus, Yesod was published before the release of this game. This is possible as release could be years after creation but it is interestingly circuitous and publication is always another layer of complication and can take much longer.