Tranquility: The Ascent is a standalone sequel to Tranquility, with players working together to complete a grid of numbers as they scale the mountain.

Starting at the bottom of the mountain, players are tasked with completing a pyramid-shaped grid from the base to the summit. If players complete the mountain and top it with a summit card, they win; if a player cannot take an action on their turn, everyone loses.

Tranquility: The Ascent includes three mini-expansion modules that can be added separately or together. "The Green Path" requires players to form a continuous path from the bottom to the top of the mountain. "The Panorama" module gives players specific number sequences to photograph. And finally, herd "The Mountain Goats" up to the summit where the grass is greener in the final module.