Crimson Horizon

Set 3.5 billion years into the future, humanity has long abandoned Earth, seeking refuge in distant solar systems. You and your friends, however, were left behind—trapped in a glass dome on the dying planet. Above you, the Sun has swollen into a massive red giant, scorching the Earth with unbearable heat. The Moon, once a symbol of serenity, now burns and disintegrates as it drifts further away into the void of space.