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 $1.2M — a different platform, not this one.

Monster Prom 4: Monster Con

GET READY FOR THE MONSTER CON!   "Monster Prom 4: Monster Con" goes back to the classic dating sim formula from the beloved Monster Prom franchise: you have limited time to find a date among six sexy monsters!  This sequel brings you into a wacky new setting: the Monster Con, a massive convention filled with video games, comic books, anime… and more than a few paranormal activities.  You can expect a multiplayer narrative adventure full of colorful characters and hilarious dialogue!  Explore the Con and fulfill your nerdiest fantasies! Get to know the Con’s crazy staff and visitors: annoying streamers, famous authors, washed-up actors, networking game developers… and so many more! Hang out with your old friends Zoe and Liam, and meet four brand new characters who might win your heart by the end of the Con!  Grab up to three friends or play by yourself. Enjoy the beautiful art and the witty dialogue. Unleash your inner nerd and make the right choices to find a date at the craziest monster-filled convention you'll ever visit!  What can you expect to find at the Monster Con?     The signature style of the Monster Prom franchise: unique, charming characters and irreverent humor New mechanics! During the Con, you’ll get a chance to build your own comic book that you'll get to see by the end of the run. Intimate conversations to get to know your favorite characters. TONS of beautiful art! You can play with friends via local and online multiplayer! Compete for the heart of a character! If you share your romantic tastes with your friends, be ready for some stiff competition. There's a sexy clown. Honk! Please note that DLCs are not available for Linux.