Dude! No! You can't make a story that hooks me from the start, and then NOT finish it!
Let's get on with my comment. The graphics. 90% of the time I'm not a fan of gameboy-color stylized graphics. You are in the 10% that pulls it off- mostly because of detailed graphics. Limited color palette works- after all a "snow planet" wouldn't be very colorful. Also- red blood on monochromatic picture always works.
The sound. I mean, it's ok, but not amazing. The music fits the atmosphere, so I guess it's allright.
The gameplay was fun. I liked that you made a separate UI for interacting with radio and the computer. The plot pulled me in and I was curious what's gonna come next... so I was totally disappointed, when it finished! I'd really love to play that to the end!
As for the theme... I was really curious how it would play out. Is the monster the guest? Is it the guy with a knife? Are we, and the company the uninvited guests on the planet? I want to find out!
Over all... if this game was finished this would be easily one of my absolute favorites in this jam. As it is... I still like a lot, but it leaves me unsatisfied. If you come around to adding an ending after a jam drop me a message :)