Thanks for the feedback! :)
Most of our sources are listed on the official submission page.
Did you hear the music & sfx while playing the game? If not I can see how the end scene could be confusing. You're supposed to be able to hear stab sounds, which clarifies (or at least should clarify) what is happening. (We also thought about adding blood splatters, but ran out of time to implement that.)
We've learned that the sound doesn't work with some browsers, so we recommend playing in Firefox.