Aw man, I am sorry to hear. There is a save system but it requires you to manually save and you get a pin. Unfortunately the game saves on your cookies so if ur browser wipes those, ur save gets wiped too.
I'm sorry this happened, but when I get further into development, we will have it all saved to google cloud some day, or steam cloud... In due time! I will make the game better.
Thank you for testing it all and please, feel free to join discord and keep up with all that were doing!!! https://discord.gg/nEFnuwEj