This is my plan for running it.
I am going to only play at night or in a dark basement/room where we can get full darkness. Everyone will either get Holloween glow stick necklaces to see by or I will get a black light and some high contrast dice.
The players will sit on a couch, with a table in front of them, facing a wall. I will sit behind them, use my laptop with a alien sound board, a cup of water so I can flick water on the back of their neck, tapping them on their shoulders, and throwing books on the ground for jump scares.
I will get a little cheap red strobe light from Spencers or some gak. If they decide to blow the ship up they will do so on an actual timer with the red strobe going the whole time, and me counting down, t minus x minutes till self destruct.
I plan to really scare people.
What about everyone else? What are your plans for Alien?