I have been tinkering with this word game for something like 6 years. It is intended for mobile, though it works adequately on desktop. It is a virtually endless word-finding game that can be played solo or taking turns with a friend. I still need to add some game modes and more interaction, but the bones are there:
This is great! What I‘d like to see is a progression, for example stage 1 with a big 8x8 grid which shrinks based on some metric. The game end once you cant form any new words. Smth along these lines wouls be cool!
https://wordwhile.com/
Be gentle, it's running on a budget server.