This includes Palworld's developer Pocketpair, which posted to X this morning the following (machine-translated) statement: "For some reason, many employees have reported that they may be feeling unwell tomorrow, so tomorrow [they've] been given an extra day off." The full image also reads:
www.pcgamer.com
"Regarding February 28th, we have received a series of mysterious reports from many employees that they may feel unwell tomorrow, so the company has decided to institute a special holiday." Not everyone's got the day off, mind—there's a note that some departments are excluded, and "updates to 'PalWorld' and 'Craftopia' are progressing smoothly and are expected to be implemented as scheduled."

Palworld's developer gives staff day off after Monster Hunter Wilds causes 'a series of mysterious reports from many employees that they may feel unwell'
Coming down with a case of monst-itis.