Night diving deserves a quiet night. And a seriously cheap Indie Gala Bundle.
Lookit: £2.59 will net you 7th Guest, 11th Hour, Bad Mojo: Redux, Harvester, I Have No Mouth And I Must Scream, Shadow Man, System Shock 2, Wizardry 6, Wizardry 7 & Wizardry 8. A seriously good haul, brought to us by the port specialists Night Dive Studios.
Personally I'd start with System Shock 2, move onto twisted cyberpunk adventure I Have No Mouth, play some Shadow Man and then dive into the Wizardry series. 7th Guest is also still as hammily brilliant and annoyingly obtuse as ever.
Anyway, here's a video of Carl and I mucking about in System Shock 2's co-op, which should only be played ironically after solo completion!