Cryptmaster is a dungeon-crawling, word-based puzzle RPG. It has been variously described as "Wordle in a crypt", "Mavis Beacon teaches necromancy" and "Scrabble meets Inscryption"! The idea didn't really come to us all at once, it grew very gradually out of a host of other ideas, changing all the time as we developed it.
We actually started to make a game in which you commanded a pirate ship by shooting things with your pistol. Then we decided you'd be able to shoot words out of people's sentences to change their meaning. Then we ditched the gun and came up with a system that allowed you to steal and replace words to fit the story. We were struggling to stick with the pirate theme by this time, so we switched to fantasy - a game about mages using words to affect their environment and fight enemies. Then, finally, we realised that a dungeon crawler was the best match, added a snarky narrator, and the game took shape from there.