At time of writing, the store states the deal expires in 16 hours: https://www.microsoft.com/en-us/p/word-chef-master-word-search-puzzles/9phv7txp08hg?rtc=1&wa=wsignin1.0&activetab=pivot:overviewtab
Itch.io Unforgiven game (looks okay, expires in 14 hours): https://itch.io/s/34760/unforgiven-sales