I fully agree with @hawkbyte . The game is playable and complete-able, the vaguely fantasy-like setting is fine, the starting location is intriguing enough, there are some items that are 'common-sense-coherent', but that's really about it. 

The game actually reminds me a little bit of 'The Cave of Magic' which is - in reality - Tutorial A in the Adventuron Text Adventure System.

Now, all is not lost for the creator, but - again agreeing with @hawkbyte - I, too, think they might greatly benefit from migrating to an IF system that integrates standard verbs and more, sensible standard responses.

'Yesternight' is also an interesting name.

Yesternight is an extremely sparse game. Room and object descriptions are only a few words, or outright absent. It’s also very short, with only two simple puzzles, and no plot except the player’s natural motivation to go forward.

What’s there is a charming, fairy-tale adventure; but there’s so little of it!

The main flaw of the game is the painfully lacking implementation. There is no scenery at all: if a game says “You see a grocer” in a grocery store, it should know the word “grocer”. The puzzles suffer badly from guess-the-verb syndrome.

The game’s English is poor. In particular, it omits many articles. One verb is used in a non-standard way, which affects the solution of a puzzle. I’m unclear if this is a deliberate stylistic choice, a limitation of the engine, or the author having difficulty with English.

Walkthrough and map (major spoilers)

For the author

Have you considered writing this game as a graphical, point-and-click adventure instead? This would lend itself much better to the narrow options.

Alternately, have you considered a different parser (e.g. Inform or TADS), that comes with sensible responses to a lot of common verbs?

If you want to focus on AdvSys, try playing The Sound of One Hand Clapping, a fleshed-out game you can use to get more ideas.

If you’re having trouble with English, do feel free to ask for copyediting/proofreading help. Come to any of the English-language IF Discords, I (and probably quite a few others) will be happy to help.

As this is an AdvSys game, it is also playable with the Gargoyle multi-interpreter and therefore playable also on Mac and Linux in addition to Windows.  I think you should mark your game file as playable on Mac and Linux too, as many IF players are not using Windows and they might think they cannot play this game. The Windows-only games are the only games with zero ratings in the time of writing.

I just completed this game using Gargoyle. It was very short, like a concept demo, and could use some testing by others, but still, I managed to enjoy it briefly.