This simply adds in more speed options, detailed below: * Realist: Standard speed, but with 2.5× time for research and slower year progression (plus some other background adjustments). * Realist Plus: As above, but using values closer to the default Marathon speed. * Long Haul: starts at 6000 BCE, slightly faster year progression than the other two but uses values similar to Marathon for research etc. * Extended: Similar to Realist, but does Horrible Math Things™ to the default years-to-turn values. * Even More Extended: Like Extended, but EVEN LONGER * One to One: Every turn is one year. * One to Five: Every turn is five years * One to Ten: Every turn is one decade * One to Twenty: Every turn is two decades * One to Forty: Every turn is four decades (this is identical to Standard, but the year to turn ratios don't ever change.)