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 $366.5K — a different platform, not this one.

Halfway

Halfway is a turn-based strategy RPG taking place a few hundred years into the future. Humanity has begun to colonise new worlds and until now, they were alone… In Halfway you take control of a small team of survivors faced with a violent invasion onboard the colonial vessel Goliath. As their leader you will guide them through the dark and cramped corridors of the ship to slowly take back control. If you have any hope of surviving, you’ll have to fight, face your fears and outsmart the enemy! Use cover, position, equipment and skills to your advantage in your battles. Unique characters: Your team is formed of unique characters you pick up along the way. Each one of them brings their own story, skills and experiences to the journey. Find yourself in the middle of an engrossing story-line. Step by step you’ll uncover the mysterious events that took place and what it means for you and all of humanity. Immerse yourself in 10-14 hours of gameplay in a beautiful pixel art environment with a lovely atmospheric soundtrack by Gavin Harrison