TSU Customization to the ULTRA RULES

System Generation

Almost every rules customization for the TSU History is made in Section W, System Generation. Because ULTRA STARFIRE was not designed around a particular history, there are certain aspects of the rules that were intended for simplicity and balance rather than for it's value in the history. These rules will be presented in document form at a later date as optional rules.


[1] Roll (2) 1d10 for the first two orbits, with any die result > 1 different being used. Lowest number is orbit A, highest number is orbit B.

[2] The 'WP in Asteroid Belt' anomaly is removed and replaced with 'Long Distance Companion' - roll 1d10: 1-6 Binary System, 7-9 Trinary System, 10 Binary Pairs. Binary systems are like a normal binary except the stars are 1d10/2 StMP apart. Trinary systems are like normal trinaries, except the trinary star is 1d10+5 StMP away. Binary Pairs are two binary stars rolled as separate binary star systems, except they are 3d10 StMP apart. Warp points are calculated separately for the long distance companion, as if it was a separate star system. Otherwise, all other aspects of system generation remain the same.


[3] 'O#' planet types have been renamed: Type-B are Barren worlds (old Type-O2), Type-H are Hot Barren Worlds (old Type-O3), and Type-F are Frozen Barren worlds (old Type-O1).

[4] Moon types are designated as 'm(Type)' such as mB, mF, or mT. This indicates that the body uses moon-size population sizes.

[5] Twin moons of Type-G planets are Type-mT (Terran), and tidelocked moons are Type-mH.

[6] Twin moons of Type-I planets are Type-F, and tidelocked moons are Type-mF

[7] Mass 1 planets in the gas zone are Type-B.

[8] Mass 1 planets in the ice zone are Type-F.

[9] Type-F and Type-H planets have -15 to moon quantity roll (just like previous Type-O)


[10] Asteroid belts have different values depending upon which zone they are located: Rocky Zone (20 PU per LM, 10% Bonus Value), Gas Zone (10 PU per LM, 5% Bonus Value), and Ice Zone (5 PU per LM, 5% Bonus Value)


[11] Binary and Trinary star systems may have warp points around any star. Roll 1d2 for binary systems, and 1d3 for trinary systems.

[12] Quaternary star systems treat each star pair as a 'single star' for the purposes of determining warp point positions. Roll 1d2, with '1' meaning the WP is around the first pair, and '2' meaning the WP is around the second pair.

[13] Any warp point at the same orbital distance as a planet (the same LM distance) will turn the planet into an asteroid belt, and the 'warp point in asteroid belt' anomaly occurs during this instance (only). It is no longer a special system type, but rather a natural occurence (albeit extremely rare).

[DESIGN NOTE] Star systems with more than one star have a stronger gravity well, and generally have less warp points. The fact that warp points can be found at any star is a symptom of the fact each star has the potential for WP, but since only a single roll for number of WP is made, the number of WP "per star" goes down for multiple star systems.

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