An interesting game for sure. Wolfenstein vibes brought some out some nostalgia so congrats on that. You did a good job on communicating to the player their goal and what to do with their powerup. The atmospheric music was a good choice to go with and lends itself to your chosen theme. While there were moments where I felt like I needed a map, I still managed to find my way relatively quickly so good job there.
I think my biggest criticisms would be
- The player lacks the ability to change mouse sensitivities. I personally felt constrained by it, but I managed to roll with it.
- Head-bobbing. Ultimately, I think head-bobbing shouldn't exist in a game where the ceiling is just barely above the player. If the rooms are more open vertically, then yeah I don't mind it as much. Personally, I don't like head-bobbing at all and think it would have been nice to have an option for that as well. This is more of a nitpick.
- I think you should have put a little sound on the enemies. There were two or three instances where I was shooting an enemy in front of me and had no clue that an enemy was behind me and that got me killed. In fact, it would not only help the player, but also add to the atmosphere. I remember so many instances in Doom 1 and 2, where before i entered a room, I could hear the monsters rumbling and grumbling which added a "I don't know what's in there, but I know it ain't good" feeling.
- Font is a little hard to read, but I'm not going to dock you on that because my entry's font is hard to read. Sometimes you make that sacrifice for an external font that matches your game's aesthetic.
- I think the gun may overheat too quickly. I think if it was toned down a little it would feel a bit better.
Overall, I liked this entry. It was fun. Nostalgic for me and it seems like you had a fun experience making it. Congrats!