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 $626.7K — a different platform, not this one.

Hyperdimension Neptunia Re;Birth2: Sisters Generation

Gamindustri has been taken over by a new threat, and the CPUs are nowhere to be found! It’s now up to their younger sisters to step into the spotlight and save the day in this hilarious, deeply customizable JRPG! Gamindustri in 1080! Experience all the humor, turn-based battle, and crazy HDD transformations of Re;Birth2 with the sheen of 1080p excellence! Four or More for War! Have up to 4 characters on the battlefield, and 4 more on the sidelines, ready to jump in and give their support! Stella goes Rogue! Send Stella out to brave Gamindustri’s dungeons in this realtime mini-game and she’ll collect all kinds of treasure for you – you just sit back and eat pudding! Be careful though, because if she dies in the dungeon, she’ll lose all her special gear! The World’s your Oyster! Customize the Gamindustri experience with Plans, which allow you to do things like increase/decrease enemy difficulty, change the items you’ll receive from a dungeon, and more! Build-a-Sword! Use Idea Chips and Blank Discs to create custom equipment that can open up new worlds of skills for you!