[assimpleaspossi]

I have no clue what's going on here.

Why do people create these things and assume everyone will know what's happening.

[scubbo]

If you're talking about the game itself - because keys and doors are pretty universally understood symbols.

If you're talking about the ending (no spoilers) - those symbols are also widely understood among the target audience of HN.

[assimpleaspossi]

When I first went there, there was no key. I just went there now and saw the key. Don't know what happened before but now I get it.