**Tombs and Mummies by Matthew Warner**
People named Matt W have been doing good work in the math world for a while, including Matt Weiner (mod for this website) and Matt Wigdahl (author of IFComp-winning Aotearoa); so I was looking forward to this game.
This is a quest game and is online-only (you might be able to download an offline copy from textadventures.co.uk, but the download button on the ifcomp page just links to the website). It does not allow undo, has timed events, and if you leave it alone for 5 minutes, it will kick you out and lose your progress.
Fortunately, the game map is compact and the actual solution requires about 20 moves (mostly directions), so if you lose everything you're not set too far behind.
About half of the things you see in the games are traps, and unhelpful, and the rest are useful. Some are both (like the hint machine that hurts you while hinting).
The images, taken from ancient Egyptian art, were lovely, and the puzzles weren't unfairly difficult. I'm glad I'm played it.
+Polish: Nice images, well-thought out design and item placement and responses
+Descriptiveness: The game was very vivid to me.
-Interactivity: The above mentioned troubles with timing out and active events weren't too bad but enough that it impacted my enjoyablity
+Emotional impact: I felt a sense of adventure
+Would I play again: Maybe I would.