Hi and thanks for reaching out!
I'm currently working and playtesting another game. Indeed, what you have available on itch is only the core system but there's no way for you to properly playtest it (except from creating a character and imagining NPC's that you can interact with).
I might try to come back to it in the following months to clear things up and give a "demo" to playtest more properly! Though, if you're interested in playtesting the game before I put it on itchio feel free to tell me :)
Have a good day !