The Pit is a text-only story made in Ren’Py, where you wake up inside a pit, not remembering how you got there or why your whole body hurt. Stuck, with nowhere to go, you try your best to assess your state or try to recall anything that could have led you in this situation. Later on, you can even explore a bit.
Though there isn’t much you can do to save yourself, the interesting bit in this entry is trying to figure out what happened to you. Especially in Chapter 1, you are given quite a bit of options to explore this mystery. Except you are limited in your choices (3-4, I think?) before the story moves on. You only get bits and pieces at a time, never truly see the whole picture.
Pretty creepy.