The premise of The Thing is that you don't know who is going to kill you next. I love that feeling, especially in gaming. But the actual game i'd like to see come to life, wouldn't be in an actual thing universe, but rather use some ideas.
The game would be a multiplayer class based mystery shooter with horror and role playing elements, and I would hope it to be first person. There would be twelve classes, including The Thing, that would have jobs aboard a spaceship. Each class would have a particular room which would enhance their own expertise, for example, an engineer would work in the work shop to fix randomly generated issues aboard the ship such as lights going out, a room being filled with toxic gas, an engine going out, or even a hole in the ship sucking everything out into space. The point of the game would be to do your role on the space ship, until the character that is secretly The Thing, would pop out and start killing people. The Things goal, is to infect/kill all remaining players. The players goal would be to totally eradicate all threats of The Thing. This would sound over powering, but The Thing would have the ability to infect another player, which would basically make it so they can turn into a thing whenever as well. To nerf that, the initial Thing is the only player that can infect. Infecting would have to be done stealthily so no one sees you do it, otherwise your dead. You would be able to hide bodies in closets, lockers, or even vacuum them out into space. You would have to clean up blood spilled onto the ground to make sure no one is aware.
So the classes would be listed as such, with such abilities:
(P.S.: Every player could wield a gun, it would just help eliminate trollers and such.)
Commander - Has overall authority over everyone else. He/She could be killed if being unfair(Mutiny) or if The Thing has broken loose, and everyone is panicking. He has the authority to wield a gun.
Engineer - Can fix any randomly generated issues upon the ship.
Officer - Would be a tattle-tale of sorts, and would watch players to see if they are misbehaving(Killing, stealing, cheating, being unresponsive, etc.) and report to the Chief of Security.
Chief of Security - Second in command to the Commander, he/she would order about the two other Security Guards. Has the ability to wield a gun. Can take arrested players, and put them in jail. Jail would be a room where players are disarmed and cannot do anything but chat. They can escape with help from other players, or if a random event unlocks them.
Security Guard X2 - Patrols about and shoots or arrests anyone misbehaving. Follows the word of the Chief of Security. Can wield a gun.
Storage Clerk - Controls all stock of guns, items, food storage, etc. Guns and certain items could only be taken out of storage with permission from the Clerk and Commander, unless the Storage Clerk dies.
Doctor - Would treat wounded and revive the dead(Depending on how dead they are*You can't heal bits of people*). If the Doctor were to die, no person could be revived or healed.
Scientist - Can do a blood test within certain time increments to see who The Thing is. The Thing can fake a blood test only once or twice, before just popping out and killing as many as he/she can before dying.
Janitor - Has the duty of cleaning up blood, dead bodies, and food messes.
Chef - Cooks food to help restore hunger bars(That's right, SURVIVAL). Other players can make and eat food without the Chef, but the Chef offers more replenishing food.
The Thing - After receiving this class, they get another class randomly chosen for them(That hasn't been chosen yet) so they have a secret identity. They can pop out and start killing people with the push of a button, or infect people by being alone with them and knocking them unconscious(Which would put a player into a state where they can watch through The Things eyes while they are unconscious). Player chat would have specifying capabilities(Whispering), but if a player has been infected by The Thing, they cannot type in any players name or the phrase The Thing, or just the word Thing. In no way would they be able to communicate who the thing is.
Other features such as lockable doors, an extra class such as a hacker or something would be added to make it so twelve players could play at the same time.
These are my ideas that have been growing for about a year or two now. I have played this in an acting sort of game, where you actually walk around and act out the game, but I've always wanted it to be a video game; to let everyone else experience it. Please, someone grab onto this. I'll respond to any messages or comments sent my way.