The proposal for integrated Fremen cities list:
1. Sietch Tabr
2. Gara Kulon
3. Sietch Makab
4. Sietch Abbir
5. Coanua
6. Windgap Sietch
7. Tasmin Sink
8. Hobars Gap
9. Umbu Sietch
10. Jacurutu
11. Bikouros Sietch
12. Cahueit Caves
13. Djedida Pan
14. Abumojandis Gap
15. Rajifiri's Nest
16. Saajid Cliffs
17. Legg Abode
18. Shishakli's Place
19. Chatt's Leap
20. Merkur Sietch
21. Keke Hideout
22. Takim Rock
23. Tecrube Sietch
24. Shamir Wall
25. Fash Lookout
26. Tuek's Sietch
27. Bannerjee's Post
My suggestion is that Fremen should share the list with "barbarians". It would be reasonable fluff-wise, as Fremen tribes tend to integrate and disintegrate and rival one another and generally seek independence and entertain certain distaste for central authority (as proven by the content of Dune Messiah and Children of Dune). In this context, I would also suggest creating a category of Independent (Smuggler?) cities, just like in Rhye's and Fall - that you cannot have detailed diplomatic relations with, but you can be at peace with unless you step into their territory. I think the pool is sufficient to support all mentioned groups (if not, I can invent some more).
Once we agree on that, I will try to arrange a general list for other civs.
1. Sietch Tabr
2. Gara Kulon
3. Sietch Makab
4. Sietch Abbir
5. Coanua
6. Windgap Sietch
7. Tasmin Sink
8. Hobars Gap
9. Umbu Sietch
10. Jacurutu
11. Bikouros Sietch
12. Cahueit Caves
13. Djedida Pan
14. Abumojandis Gap
15. Rajifiri's Nest
16. Saajid Cliffs
17. Legg Abode
18. Shishakli's Place
19. Chatt's Leap
20. Merkur Sietch
21. Keke Hideout
22. Takim Rock
23. Tecrube Sietch
24. Shamir Wall
25. Fash Lookout
26. Tuek's Sietch
27. Bannerjee's Post
My suggestion is that Fremen should share the list with "barbarians". It would be reasonable fluff-wise, as Fremen tribes tend to integrate and disintegrate and rival one another and generally seek independence and entertain certain distaste for central authority (as proven by the content of Dune Messiah and Children of Dune). In this context, I would also suggest creating a category of Independent (Smuggler?) cities, just like in Rhye's and Fall - that you cannot have detailed diplomatic relations with, but you can be at peace with unless you step into their territory. I think the pool is sufficient to support all mentioned groups (if not, I can invent some more).
Once we agree on that, I will try to arrange a general list for other civs.