I think you are massively overestimating the importance of the story of Half Life. World building (to create tension and a creepy atmosphere) are much more imp

I think you are massively overestimating the importance of the story of Half Life. World building (to create tension and a creepy atmosphere) are much more important and also compact things, much more easily transportable and play a much larger role. Since there will be hardly any plot-connections you are just not missing much …