Thanks for playing my game! :)
Indeed, the fact that there is no clear win condition is one of the biggest issues. I went way over my head and didn't have time to make it really in a playable state.
The game just loops over and over by itself. If you managed to prevent the thieves from stealing the items, you won :). Also good job on understanding the gameplay as it seems to be a big issue of the game too.
Thanks for your time and your feedback! :)