"Doom-clone" isn't even an apt description for this game, as it would imply it is somewhere close in quality or fun to Doom. It's one of those FPS games where simply running through the level avoiding enemies is more fun than "engaging in combat" with them. It's not completely awful, but then again, it's very hard to fail at such a basic formula. The visuals aren't great (Doom and Wolfenstein had legitimately better and more interesting graphics), the sound is very basic, the level design is pretty basic too, there's a smidge of a plot that seems pretty uninteresting, and very little reason to play it. Though the general movement is good, which is why I ended up enjoying the "alternative" of running past enemies trying to dodge all the projectiles and traverse the level as fast as possible. Unless you're feeling really bored and the idea of running around occasionally shooting an enemy who gets in your way calls to you, you're better off skipping this.
The visuals aren't great (Doom and Wolfenstein had legitimately better and more interesting graphics), the sound is very basic, the level design is pretty basic too, there's a smidge of a plot that seems pretty uninteresting, and very little reason to play it. Though the general movement is good, which is why I ended up enjoying the "alternative" of running past enemies trying to dodge all the projectiles and traverse the level as fast as possible.
Unless you're feeling really bored and the idea of running around occasionally shooting an enemy who gets in your way calls to you, you're better off skipping this.