Friday, December 19, 2025

Sleuthing Out Tlaukhu Details

Hlakhoi (-4/-2) sector, known to the ancient Terrans as Albireo.

I turned in The Aslan Hierate manuscript back at the end of October; the book is currently on the Mongoose Release Schedule for next summer. Unfortunately, I have been too busy on various projects to catch up with this poor, neglected blog.

I haven’t been completely idle on the Traveller front, though: I’ve provided a few suggested tweaks regarding Aslan Traveller generation for the upcoming revision to Aliens of Charted Space Volume 1. I’ve also been hard at work outlining a campaign book with the working title of Kith and Clan. I’m shooting for a big, sandboxy romp very much in the same vein as Pirates of Drinax, but set in Hlakhoi sector.

As part of this work I’ve been playing with the clan generation system from Clans of the Aslan, and realized I’ve never really explained how I derived many of the details for the 29 Tlaukhu members that appeared in Clans. I’ve previously discussed a bit of this in an older post on Developing the Tlaukhu.

To recap, we know from the CT Aslan Alien Module (1984) that the “Hierate includes more than 4,000 clans spread across about 7,000 worlds in 17 sectors.” Aslan world generation and published sector data indicates how many of these worlds are controlled by members of the Tlaukhu.

Unlike other types of Aslan clans, we know the names of all 29 members of the Tlaukhu, their relative ranking to each other, and their associated power bloc and the ranking of those alliances:

Tlaukhu Power Blocs
Power BlocMember Clans
AsT0Yerlyaruiwo (1), Hrawoao (13), Eisohiyw (14), Ferekhearl (19)
AsT1Khaukheairl (2), Estoieie’ (16), Toaseilwi (22)
AsT2Syoisuis (3)
AsT3Tralyeaeawi (4), Yulraleh (12), Aiheilar (25), Riyhalaei (28)
AsT4Hrasua (5), Eteawyolei’ (11), Fteweyeakh (23)
AsT5Hlyueawi (6), Isoitiyro (15)
AsT6Uiktawa (7), Iykyasea (17), Faowaou (27)
AsT7Ikhtealyo (8), Tlerfearlyo (20), Yehtahikh (24)
AsT8Seieakh (9), Akatoiloh (18), We’okunir (29)
AsT9Aokhalte (10), Sahao’ (21), Ouokhoi (26)

This information allows us to estimate additional details about the Tlaukhu members. We know from our post on Governments and Allegiances in the Hierate that there are probably about a thousand worlds (16%) completely controlled by a Tlaukhu clan. Evenly distributed, this would be about a hundred worlds per power bloc or a little more than 34 worlds per individual Tlaukhu clan.

The composition of the Tlaukhu has been fairly stable for over 3,000 years, at least in terms of individual members: most current seats have been held by the same clan since the council’s founding. We also know that members are not completely equal, as they can be ranked both individually and collectively as power blocs. So I assume the most powerful Tlaukhu members are much more powerful than the weakest ones, but not so powerful as to bully their lessers with impunity. In fact, the various blocs probably arose to address persistent power disparities.

I further assume that the best indicator of power among the Tlaukhu members is probably the number of worlds controlled. While other considerations undoubtedly influence rankings, such as honor, cultural or historical importance, or economic and military might, the sheer number of worlds under direct control is probably the clearest signal of clout.

To start, I looked at dividing up a thousand worlds between the ten power blocs. First I ordered the ten blocs by rank. I assumed that the first ranked bloc (Yerlyaruiwo) would not be more powerful than the bottom two blocs (Seieakh and Aokhalte) combined. So I assigned the first ranked bloc an arbitrary strength of 1, and the tenth ranked bloc exactly half that: 0.5. I then did just a simple linear interpolation for the remaining eight blocs. An interval of 0.05556 separated each consecutive bloc. These strengths sum to a total of 7.5, which I used to develop prorated estimates of the number of worlds controlled by each bloc:

Tlaukhu Bloc Strength and Estimated Worlds
Power Bloc Rank Bloc
Strength
Worlds
Controlled
First (Yerlyaruiwo) 1 1.00 139.20
Second (Khaukheairl) 2 0.94 131.47
Third (Syoisuis) 3 0.89 123.73
Fourth (Tralyeaeawi) 4 0.83 116.00
Fifth (Hrasua) 5 0.78 108.27
Sixth (Hlyueawi) 6 0.72 100.53
Seventh (Uiktawa) 7 0.67 92.80
Eighth (Ikhtealyo) 8 0.61 85.07
Ninth (Seieakh) 9 0.56 77.33
Tenth (Aokhalte) 10 0.50 69.60

Thus, the first (Yerlyaruiwo) bloc was estimated to control 140 worlds, while the tenth (Aokhalte) bloc was estimated to control 70. Now that we’ve estimated the number of worlds controlled by each bloc, we can further break these numbers down to individual Tlaukhu clans.

We know the number and identity of Tlaukhu clans within each bloc as well as their individual rank. I simply grouped each bloc member by relative rank within their bloc: 1st, 2nd, 3rd, or 4th. As a starting estimate, I assumed the second-ranked clan controlled half the worlds of the first ranked clan, the third controlled a third, and the fourth, a fourth. This resulted in the following distribution:

World Distribution within Tlaukhu Blocs
Power Bloc No. of
Members
Worlds by Member Total
Worlds
1st 2nd 3rd 4th
First (Yerlyaruiwo) 4 67 34 22 17 140
Second (Khaukheairl) 3 72 36 24 132
Third (Syoisuis) 1 124 124
Fourth (Tralyeaeawi) 4 56 28 19 14 117
Fifth (Hrasua) 3 59 30 20 109
Sixth (Hlyueawi) 2 67 34 101
Seventh (Uiktawa) 3 51 26 17 94
Eighth (Ikhtealyo) 3 46 23 15 84
Ninth (Seieakh) 3 42 21 14 77
Tenth (Aokhalte) 3 38 19 13 70

I then laid out all 29 Tlaukhu members in order. I had honestly expected the result would need a lot of hand tweaking but the raw numbers seemed pretty decent:

Tlaukhu Worlds by Clan Rank
Rank Clan Bloc Worlds
1 Yerlyaruiwo AsT0 67
2 Khaukheairl AsT1 72
3 Syoisuis AsT2 124
4 Tralyeaeawi AsT3 56
5 Hrasua AsT4 59
6 Hlyueawi AsT5 67
7 Uiktawa AsT6 51
8 Ikhtealyo AsT7 46
9 Seieakh AsT8 42
10 Aokhalte AsT9 38
11 Eteawyolei’ AsT4 30
12 Yulraleh AsT3 28
13 Hrawoao AsT0 34
14 Eisohiyw AsT0 22
15 Isoitiyro AsT5 34
16 Estoieie’ AsT1 36
17 Iykyasea AsT6 26
18 Akatoiloh AsT8 21
19 Ferekhearl AsT4 17
20 Tlerlearlyo AsT7 23
21 Sahao’ AsT9 19
22 Toaseilwi AsT1 24
23 Fteweyeakh AsT4 20
24 Yetahikh AsT7 15
25 Aiheilar AsT3 19
26 Ouokhoi AsT9 13
27 Faowaou AsT6 17
28 Riyhalaei AsT3 14
29 We’okurir AsT8 14

Note that “worlds” here refers only to main worlds directly controlled by a single clan. Each Tlaukhu clan has a comperable number of worlds held in fief by Tlaukhu Vassal clans, as well as additional holdings on Split Control and secondary worlds. All told, the main worlds might only represent about a third of a clan’s total holdings. Knowing the number of worlds held by vassals also helps us estimate the number of vassals sworn to each Tlaukhu clan.

These numbers help explain the importance of power blocs among the Tlaukhu members. Although the Yerlyaruiwo clan individually holds only the third-highest number of worlds in the Hierate, their leadership atop the most powerful bloc helps place them as the top-ranked clan. In contrast, the Syoisuis clan, which controls almost twice the number of worlds as the next largest clan, has no allies and thus is only ranked third in the Hierate. This also explains why the clan has adopted a “studied neutrality” in Hierate politics: it is vulnerable to an attack from any two blocs.