Hello Dem,
Thank you for interest in ExpandCiv. At the moment ExpandCiv is not my development priority but I have noticed it still maintains a certain popularity so I may revisit it. There is a tutorial but it's intermingled into the regular game. Underneath the day and time hud, there is a box with text, when clicked it displays the tutorial tips that show up over time to help guide you. You can remove these tutorial tips to gain access to the full game by opening up the menu (click the gear icon to open menu) and then toggling tutorial tips off.