Explain The Act

Hey, i didnt follow the project back at the kickstarter was started so i didnt know about this act thing until now(well, i just finished the main quest).
are those the end of act 1 or both act 1 & 2 ?
if it is the end of act 1 i really hope you guys add more end game content to enjoy.
i know that doesnt make sense if you follow the story, since he didnt stick around in the area.
but i just hope this is not the full experience of the journey. at least for this game, i know there will be a sequel for this.
thank you, love your work