Data structure is loosely based on the code by /u/philni , which is based on the code by /u/rler , which in turn was based on the original calculator and source from rivsoft . Visit /r/clickerheroes for more info.

This calculator uses the Rules of Thumb to offer ancient suggestions. The calculator distributes the available hero souls among the available ancients.

What is the easiest method to level ancients?

If you press on the number in the change field, the number changes to a long format and is automatically selected for copying. If you hold "v" when clicking on the corresponding ancient's purchase button, an input field will pop up. Paste the number you just copied into this field, and press "Ok".

Why does the calculator tell me to level Morgulis more than I am able to?

It probably doesn't. If you have the outsider Chor'gorloth leveled, all ancients become cheaper, including Morgulis. This means that one level in Morgulis costs less than one soul when buying in bulk.

After buying the recommended ancients, why do I have more souls left over than the calculator predicts?

Firstly, when you have many souls to spend the calculator will over-estimate the cost of a few ancients with a "difficult" cost formula. This approximation is accurate enough to yield very good recommendations; calculating it precisely often does not actually make a difference in regard to the number of levels recommended. Only the predicted cost becomes more accurate. Secondly, when you have only few souls to spend the predicted cost is accurate as far as the cost formulae go; there appear to be some issues in-game where an ancient sometimes costs one soul less or more than it should.

What does this "best hero will be leveled beyond 8,000" mean?

Level 8,000 is the last level where heroes get a x10 multiplier to their damage. After level 8,000 their damage increase factor is reduced. This affects the optimal distribution of ancient levels. If you level a hero beyond level 8,000 and cannot afford a better hero that has a lower level, then check this box.

What hybrid ratio should I go with?

This depends on your personal play style. A good starting point is to go with a ratio of 0.5. This works well if you usually push at the end of a run. If you notice you do not often push, drop to a lower ratio. If you notice you often push for many zones, go higher. Perhaps you only idle at the very start of an ascension. In that case, going higher than a ratio of 1 makes sense.