"100 Hours of Hardcore Minecraft" is an experiemental series by Ashley; taking the hardest difficulty of Minecraft known as "Hardcore Mode" and seeing what she is able to accomplish in a set amount of time
Of course this experiment won't end at 100 hours of gameplay. Minecraft is a limitless game after all. If you can think it, you can (basically) do it. This is mostly taking the common term associated with this style of gameplay "You'll cherish what you build with one life" to another level. Every 100 hours of gameplay will be accompanied by a video showing off the world and the stories behind the builds and if they themselves have their own lore.