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 $14.2M — a different platform, not this one.

Little Nightmares

Immerse yourself in Little Nightmares , a dark whimsical tale that will confront you with your childhood fears! Help Six escape The Maw – a vast, mysterious vessel inhabited by corrupted souls looking for their next meal. As you progress on your journey, explore the most disturbing dollhouse offering a prison to escape from and a playground full of secrets to discover. Reconnect with your inner child to unleash your imagination and find the way out!