If you like [game], you may like [book, film, etc]

[GarageGothic]

If you liked Gabriel Knight: Sins of the Fathers, you might also like Angel Heart.
If you liked Gabriel Knight: The Beast Within, you might also like Interview with the Vampire.
If you liked Gabriel Knight: Blood of the Sacred, Blood of the Damned, you might also like The Da Vinci Code, or hate it.
If you liked Phantasmagoria, you might also like The Shining.
If you liked Phantasmagoria 2, you might also like Jacob's Ladder.

[Vel]

If you liked Gabriel Knight: Blood of the Sacred, Blood of the Damned, you might also like The Da Vinci Code, or hate it.

The latter, ktnxbye.