Ran into a bunch of fungaloids, after finally getting into spawn range of the infestation NW of my start zone. Decided to start clearing the infestation, before realizing how large it was. When I realized that it would be a multi-day job I took a rest in a nearby house, intending to continue in the morning. This being my first playthrough (well, the first that lasted more than 4 days anyways), I didn’t understand the reality bubble or fungaloid spawn speed, and woke up to the fungal bloom having grown up to the house, completely covering the entire field next to it.
It turned into a long battle, but I was eventually successful in beating back the fungus menace with prodigious use of fire. Used a rifle I looted from the nearby gun store to take down the Spire. But I learned a valuable lesson that day. Don’t let a fungal infestation sit. Instead burn it down at the first opportunity.