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 $3.7K — a different platform, not this one.

Niko: Through the Dream

Niko: Through The Dream is a minimalist adventure in which you accompany Niko in her return to her world. Together, you will travel to different islands, each of them being the oniric representation of an important event of her past. Happiness, solitude or fear melded with hidden riddles, you will face dangers and traps and, with Niko, confront them with determination, ability and logic. Dare to dream. 18 worlds to explore that evolve with the story. Varied puzzles based on colours, sounds, shapes, light, physics Minimalist and intimate story, told by images and music. The more you search Niko’s world, the more you know about her and her past.