Thanks for playing! I watched your playthrough a couple weeks ago. As for allusion, there are loads of hints (some maybe too subtle...) that contribute to the underlying story, including: the colour of the people, the lack of bird sounds/fish/insects, the notebook, effects congruent with cordyceps, the propensity of the tribe members to use tactile descriptors, the way Arthur has an idle animation but tribe members don't, etc. Glad you enjoyed!