metastasis shows that retro or bare-bones feel, a fixed-width font as you describe things clinically, the cursor slowly moving left to right, dispersing scientific information. You're obviously in the sort of laboratory where emoticons are frowned on.
And once you see the choices available, well, there is nothing to smile at--if you read the first passage carefully, you'll note something disturbing at the end. The choices belie the sterility of the lab setting. Riots are mentioned. There's shelter for the lab.
COVID was "inspiration" for a lot of Twine efforts, most of which deal with social isolation head-on. It's a bit more subtle here, in the lab, trying things out, maybe making some progress. You hope. There are four endings, none directly stating what happens, with some easier to figure out than otheres. A couple, I had to repeat to fully get it, and they made more sense once I saw all four. There are not that many choices to make. I slowly pieced things together. Once I did, I realized maybe I could have guessed fully, from the title and the blurb. But watching things unfold would still have been effective.
Not that everything could unfold, with only 500 words to work with for Neo Twiny Jam. A lot of details are left unexplored, but that actually makes the horror greater. Sort of like how COVID was even scarier when we didn't know what it was about, and while we read about mutations and how it lingers, there's a feeling of "oh no I better not go out so much," but we aren't blindsided. Still, three years on, we feel lucky this didn't happen, and we remember it as a real possibility.
Further credit to the author for allowing us to press the space button to bypass the typed-text-on-screen effect, so we could experience the remaining paths at our own speed.