This game uses idea of semantic similarity (called relatedness in my game), like in Semantle and Contexto.

But i had different idea for gameplay - instead of guessing secret word, i wanted to make a game where goal is to link two unrelated words. It can be done by placing related words between starting and ending words.

In my game there are endless ways to solve same puzzle. There's plenty of room for experiments.

I've used semantic vectors from this model:

https://github.com/commonsense/conceptnet-numberbatch