Dark Seed

This is a port of Dark Seed for DOS and Amiga, and the gameplay is essentially a slightly abridged version with several screens cut out.

You are Mike Dawson, a Science Fiction writer who just purchased an old Victorian house. As you explore your new home, you soon discover that you have bought more than you bargain for.

Control the fate of two worlds… The world as we know it and the dark world of an ancient and dying civilization. Unlock the secret of a sinister plot and discover the dark passage to their world… A place more terrifying than your darkest nightmare.
Time is running out… You are on a collision course with destiny and only you have the ability to save yourself and the world from a cruel and inhuman fate. Every decision may be your last, so choose wisely… All of humanity is depending on you.