No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $20.6K — a different platform, not this one.

YesterMorrow

Her world: destroyed. Her family: kidnapped. Join our heroine Yui in a desperate attempt to save everything she loved! YesterMorrow is a single-player time-travelling 2D platformer mixing action sequences with puzzle elements. Follow Yui's adventure into the past where she must overcome obstacles and access hidden locations to salvage the remnants of a world trapped in Never-ending Night. Intent on helping the remaining survivors and freeing her family from the clutches of Shadows, what she discovers along the way will leave her with a difficult choice: what will she choose when the fate of her world and the Order of Timekeepers rests in her hands? Through her journey, Yui will: Learn the mysteries of Everlight that will grant her the power to wield special abilities and cleanse the world from the Shadows. Traverse across two different timelines, enjoying the serene calmness of the past and battling her way through the corrupted world of the future. Explore the vast world of YesterMorrow, spanning four distinct islands: visit lush forests, abandoned deserts, hardened icy tundras and finally, the Island of Time, where she will fight to change the fate of her world! Encounter dozens of colourful creatures and take on challenging bosses. Solve puzzles and find new ways to use the environment to her advantage! Locate hidden areas, collecting power ups and lore entries detailing the world and its inhabitants. Pet all the animals!