For each iteration, max_special_stats_count is decreased by 1, and total_stat_points is decreased by (max_special_value - 1). Step 1: maxed_special_stats are looped and assigned a level of max_special_value.

Total_stat_points = total_point_pool - 7 (by default this value will be 31) Maxed_special_stats_count = random(minimum_maxed_specials, maximum_maxed_specials + 1) (by default this value will be between 0 and 2) When stats are assigned, two new input variables are calculated:

maxed_special_stats (a list of S.P.E.C.I.A.L stats that will be maxed, default: 'proficiency' stat.

There are five starting input variables that presumably change according to legendary/rare/normal status (unfortunately, I have not been able to find that information):

Two maxed parents will produce a child with an Intelligence proficiency.

child, and a ~13.3% chance of producing a rare child.

Two fully maxed out parents (S.P.E.C.I.A.L 140) will have a ~6.6% chance of producing a legendary.

Parents' total S.P.E.C.I.A.L must be 122 or higher to have a chance at a rare child.

Parents' total S.P.E.C.I.A.L must be 134 or higher to have a chance at a legendary child.

If random_number is greater than 0.85 the child will be rare

If random_number is greater than 0.95 the child will be legendary

Max = (male_total_special + female_total_special - 14) / 126 There is a special case to handle 'ghost dads' which always results in normal children who inherit from the mother, though it is not clear whether it's actually used or is just an edge case error handler. (source1) (source2) (proof)Ĭhild stats appear to be calculated at the time of birth. Maxed parents' proficiency is always Intelligence. S.P.E.C.I.A.L-boosting gear does not affect this calculation.Ĭhildren have a 50/50 chance of inheriting the 'proficiency' (highest stat) of either parent. Children have a small chance of being born either rare (28 S.P.E.C.I.A.L) or legendary (40 S.P.E.C.I.A.L) if the parents' total S.P.E.C.I.A.L is high enough.

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