I don't know why it is that something bad inevitably takes place when you send a small crew to space and cram them together in a ship for months on end. But a lot of great sci-fi stories wouldn't exist without that premise, and now we've got another one to add to the list. A narrative-driven exploration game, Captain Robert by Galen Koehne takes place on a space ship where something mysterious is going on. It's up to you to figure out what happened to your crew and get out alive.
Use the [arrow] keys to move, and the [x] key to advance through text, open doors, or otherwise interact with the world. You'll find different keycards around the ship. Watch the upper left hand corner of the screen to keep track of what color doors you can currently access. Once you discover the gravity override, press the [c] button to toggle low gravity. The gameplay itself isn't difficult, but it is satisfying to slowly gain access to the whole ship while piecing together the mysterious happenings. Every new tidbit of information you glean only serves to make you keep going to find out more. You get a pretty clear picture of what happened by the end of the game, though the ending itself is open to interpretation. However tempted you might be, don't get out that Sharpie and draw a face on Captain Robert. You'll thank me later. Yes, he looks like a big white rectangle, but the game was made in only 48 hours for the most recent Ludum Dare competition, so don't let it bother you. Just get going and explore your ship.