Very cool begining, I like the design its very clean. I look forward to seeing how the development process continues.
Only 2 issues,
1.when i reached era 7 and had about 150 ancient blood my dread income was so high it flipped negative.
2. I did not like how the color theme is changing every era, some of them kind of strained my eyes a little and was annoying, my favorite colors was from era 4 so i would rather it just be that color the whole way through... or at least less changes i dunno.
Best of luck to you my friend
edit* oh ya also "hunter threat" should be explained somewhere but my guess is it doesnt do a whole lot yet