I liked this a lot! One thing I noticed is that all sounds that aren't walking (pistol firing, mob death) sometimes disappear and only reappeared after all tasks were cleared. Also, my game-screen got tinted into an orange hue on my first playthrough, when I took a while walking around the whole map. After I beat the game, the orange hue remained on screen. I clicked out of the game window (on the itch.io page) and after a few moments it reverted back to the normal resolution. I haven't had that happen again.
Also, if you were ever to touch up on this, the Wi-Fi task was a little confusing as it was the only task with a voiceline. I was wondering if there would be a visible change after completing one or all three wi-fi tasks.
Nice background/menu sound choices as well!