Advent Door

This game is a small, well-executed puzzle that includes enough atmosphere and hints at backstory to keep things entertaining.

The presentation is excellent — the player must use an unconventional mechanic to navigate through locations in the game, but the parser clearly indicates when the puzzle's rules are blocking the player from attempting something. When the player does attempt a move that's allowed, the parser is very generous about understanding actions without getting too fussy about procedures.

(Spoiler - click to show)The process of opening doors, closing doors, taking doors, and placing doors was much more streamlined than I expected. I ended up typing out a lot of extra commands before I realized that some of the actions didn't need to be explicitly spelled out.