Stay Frosty is an OSR game of future marines versus whatever the universe can throw at them. Play games in the style of your favourite military sci-fi movies and video games.

Experience fantascience roleplaying at the end of time. Escape the end of history. The eternal civilization is perfect. So say the gods, the machines. Will you defy the endless circle of awakening and forgetting? Can you kick a hole through the sky?

When the anomaly appeared at the Earth's core, the Substratum Protocol was initiated. You are the best and brightest scientists we have left, our last hope to stem the apocalypse. You are the Substratum Expedition Team. Descend. Learn. Survive.