All of my projects are inpired by outlast, which is why Last Out is "Last Out" get it? Outlast Last out. But no, not like that. I actually wanted to name it "The END?" (As if its "The end?" of your life, or were you still alive?). So the demo version was named like that, When i was done with the map the icon was like the one to the right, a door and an exit sign, instead of the flame icon (like this website). But being done did not mean for me to publish instead i continued making the map. Halfway through my motivation was at lowest, I stopped making the map for a week because of the lack of motivation. But in the end i did it all. And posted it on Planet Minecraft, i originally wanted to post it curseforge but the moderation time was the slowest ever.
The original idea for the icon: As for the need to escape but following the exit sign led you to an even worse place.