I enjoyed the fiction of Slugocalypse very much. It’s like an upbeat Day of the Triffids or a less gory Living Dead installment. It’s the end of the world, with slugs. It introduces you to an environment, introduces conflict into that environment, and then keeps things moving until the conflict is resolved.
I enjoyed this game’s presentation and interactivity, as well. It uses images and music, and I was quite happy to see a Twine game that hadn’t gone with the default white-text-on-black color scheme.
There are a few options for exploration in the game (and maybe this is a branch-and-bottleneck structure?) that allow you to carefully examine your environment for clues about the disaster or just run like hell and try to survive. In my playthroughs, there seemed to be far fewer jump scares than you’d experience in something like a Resident Evil game, and I appreciated that.
I didn’t need anywhere near an hour to get through it, although I only found two of the three endings