Played this adventure type PC game in late 90s early 2000s, on a Windows computer. You drove a submarine or some type of craft (almost 100% sure it was based underwater) and you discovered map area with a light on the craft, it was all dark. The art work was more realistic and dark type of artwork. There were also these creatures that attacked you that looked kind of like lobsters, and stations you could upgrade your craft. My brother and I have been looking for about 6 years now and haven't found anything close. We're desperate now, please help.