'Gravitats' is a haunting story about the last two beings at the end of the universe. There's something about 'survivor' stories that manages to pull at the heart strings, because even in the face of oblivion, what's most important for a puny organism's life is sometimes what's in front of them. This story does well to set up just how dire and hopeless the scenario is. The way that the set up text reads like a diary or a technician's log is great for immersing into the setting. The use of unity and 3d models gives it it's scifi feel that makes it stand out against other visual novels that more regularly use 2D illustrations.
The setting and atmosphere is so good, that it feels like this story isn't really about the characters. It definitely left me wanting more interactions between the two characters that spanned the length of their time together, maybe in a series of 'daily logs' that happen throughout the eight cycles that these two have had together at this outpost. It's interesting cause there's a lot of details put into the backstory of this world. This is one of those stories that has such a good foundation, that you could really chew through a lot more story if you wanted.
Thematically, I feel this does a really good job of meeting the 'light in the dark' theme, since the void of space is a really dark 'dark', and the wolf crew mate is literally the last good thing you have going for you. I partially wish there was more of payoff or resolution for the story, either in committing fully to the sex scene, or to actually reach the end of the universe as their ship finally gets pulled into the void. Overall, this was a really immersive setting with a really cute interaction between the two characters that wants to have a lot more story to it.