The Last Starship to Venus

The story

As the 21st century approaches, the race for scarce natural resources has shifted to the skies. The Moon, Mars, and space itself are the battlegrounds for giant corporations. But what about the hostile planet Venus? Three brave Sisunauts and one Robonaut brave the dangers and travel to the barren surface of Venus to investigate mysterious activity detected on the planet's surface. Is it a secret weapons project by a rival corporation, Dynamo, or something else entirely...