Sigil is a set of nine new levels for the original DOOM by series co-creator John Romero, self-described as “The Unofficial Fifth Episode of DOOM”. These new levels are okay, but I wouldn’t say that I was the biggest fan of them.

I do like how elaborately designed they are. Finding the correct switches to open the way forward was really satisfying after being stuck for a while. It’s just that my least favorite types of levels in DOOM are the ones where you have to navigate in the dark, and Sigil has those kinds of levels in spades. You end up encountering enemies frequently in tight and cramped spaces, and you’re constantly ambushed by a ton of enemies all at once in areas where you can barely even see them because of hilariously cheap traps. You’ll end up dying frequently, and the levels can feel very tedious as a result.

I really like the use of textures that give this series of levels its own distinct feel, and I enjoyed the music a lot. Otherwise, I didn’t care too much for these levels. They aren't completely awful, I did enjoy a couple of the earlier levels. As a whole though, I didn’t really dig this expansion. I really hope that Sigil II tries something different from this with its levels.