The Infinite World Challenge is the first and only Series Challenge. The challenge has an endless number of increasingly difficult tiers, rewarding 1 Challenge Point per Creature killed with 170 monsters per Tier. Every 10 challenges completed yields a 1% bonus and every 50 challenges completed yields a 5% bonus. When the tier is completed the counter for the 5% bonus is not reset. Every five Creatures is a Boss, and a fixed time of 25 seconds is allotted to kill each Creature.
$ Level = Stage^2 + Stage $
$ HP = (Level^2 + 5) \cdot HP Reduction $
Tip - Because the counter to the 5% bonus does not reset, it can be annoying to calculate when the 5% bonus will be added. Since it is added on every 5th 1%, the bonus damage will grow following this pattern: 1%, 2%, 3%, 4%, 10%, 11%, 12%, 13%, 14%, 20%, etc.
- The zone number of the Nth 5% bonus can be calculated as: $ 50n \mod 170 $
- "mod" is the remainder after division
- The tier of the Nth 5% bonus can be calculated as: $ (50n - zone) / 170 $
- "zone" is the value from the first formula
- You can find the next value of N you will reach with the following: $ floor(bonus / 10) + 1 $
- "bonus" is your current damage % bonus; "floor" means to truncate the decimal