For those who want to progress in the game while in a different tab: as long as the window containing Incremental Cubes is slightly visible, you will progress, even if only the edge of the window is visible. You can do this by putting Incremental Cubes in one window and whatever else you are doing in a second window and sizing the second window so it is slightly smaller than the window with Incremental Cubes, thereby allowing you to progress in the game while in a different tab.
Sorry. It depends on the specs of your computer. If it is too heavy, try turning off the effect from the option music button in the upper right corner.
I have gotten to Battle Tower Level 4.91e6 and it is getting annoying that every time I retire I have to hold Alt + → for about 5 - 10 minutes just to get back to where I was. Unless this is intentional, I might suggest adding a button to advance 10,000 enemy levels or even by the log(highest enemy level) or something similar? Thank you and I have and will continue to enjoy playing this game.
Yup, that is intentional. You "finish" the mechanic at around enemy level 20000-ish, that's when you unlock the next part of the game. You can still continue to go further for fun, but it's not necessary for progression. Also, due to the way I coded it, at some point it just breaks (I think around e11 or e12 or so) so I don't want anyone to reach those numbers. Currently that's "impossible" (not technically, but would take a long ass time to get there), so that's not an issue right now. If I were to let you go further more easily, that might become a relevant problem. Also, I very well might fix this issue entirely for the next major content update.
 "Incremental Cubes"){kind=icon}
 "Energy Generator"){kind=icon}
Thank you