The House on Highfield Lane
This is, I guess, a fairly traditional parser game, complete with puzzles that are hopefully not too frustrating, though there are hints available, which should get you through. It is one of the first games made with Quest 6, aka QuestJS, so is entirely in JavaScript and will run in the browser. The plot revolves around trying to escape a house that is - to a degree - warped in time and space.
It has already had some beta-testing, and most testers did make it to the end!
Message me if interested.