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 $30.2K — a different platform, not this one.

Geminism

GAMEPLAY & FEATURES 30 minutes of story  A linear visual novel  Full Japanese voice acting by seasoned professionals STORY Children pay karma for the sins of their parents,  born to bear a contorted cross.  Tokyo—2 AM, the witching hour.  Under the new moon, two identical girls face off.  Their improvised weapons look out of place in their hands.  Behind them stand two strange men, garbed all in black.  What do these men want? What are these girls’ dreams?  And what is it they're fighting for?  Gather round, now, don't be shy!  It's a dark festival beneath a black sky...  So, candles out—let's start the bout! CHARACTER   Kikyo Hirosoma  (Voice: Shiho Nakaya)  Shinku Hirosoma’s “older” sister. Gentle, calm, naive and easy-going.  She is on bad terms with Shinku.    Shinku Hirosoma  (Voice: Naho Nakaya)  Kikyo Hirosoma’s “older” sister. Always wears an irritated expression.  She is on bad terms with Kikyo.    Awasumi Yamaga  (Voice: Pile Bunker)  A suspicious man wrapped in bandages with old-fashioned speech.  Surprisingly, he may be quite capable with household chores...  Closely acquainted with Tsukishiro.    Tsukishiro Tsukishiro  (Voice: Mikado Sumeragi)  A suspicious man with long hair who works at night. He seems to be clumsy with household chores...  Closely acquainted with Awasumi.   This Game may contain content not appropriate for all ages or may not be appropriate for viewing at work. Buying this game on GOG you will receive a censored version of the game.