Oh, a Doom-like game but with cards. That’s an interesting thing. I do feel like fast-paced action is hard to play strategically for me, and FPS games aren’t really something I play lot, and as a result I’m also not very good at them.
I’m playing the browser version. (I’m on Linux).
Graphics: The game uses sprites and a pretty low-poly environment that, although I haven’t played Doom or the games from the nineties that were inspired by that game, I can see it fitting into the era. Even the blurry moon could have fit into the era, although the way the blur is achieved looks modern. A more retro way would have been to use vertex colours. A cool side effect of doing it that way would have been getting “rays” going out of the moon sorta like sunrays.
Sound: I notice two pieces of music: one that plays when picking cards and one that plays in the FPS section. I think both tracks are good, and they fit together too. And they both fit their respective type of gameplay. I do feel like the deck planning music isn’t meant to be listened to for many minutes in a row though. And speaking of early FPS games, I think the FPS music fits into that.
Fun: Clicking on anything captures the mouse, and then the clikable buttons don’t seem to work… until I uncapture the mouse, then buttons do work as intended and suddenly become “clickable” with the keyboard. Maybe you could make it so that whenever you show clickable buttons on the screen one of them gets highlighted by default so that pressing enter or space would activate that one and pressing the arrow keys highlights other buttons (as the game is now, once you click “Randomize Deck”, it leaves that button highlighted and allows you to reach “Ready” and “Reset” using arrow keys).
And I’ve occasionally got a bug where moving the mouse seems to do nothing but the keyboard does work. And after playing a couple of times I think the game crashed. In fact, the game crashed more times as I got better at it.
Nineties: I didn’t personally play first-person shooters in the nineties, but I know the genre became popular thanks to Doom and the games that were inspired by it. You had a sloped piece of ground that was textured, and I’m not sure Doom’s engine could do that, but Quake’s certainly could. And there’s some lighting effects that I think also feel more Quake-like than Doom-like, but both Doom ad Quake were 32-bit, so a game that lands somewhere between the two does seem like it fits this theme.
What I liked most: The graphics and sound.
What I’d suggest changing: I’d probably try to make the game not crash that often.