Hall of Giants

[BradHann]

This system contains:
Class I GG
Class II GG
Class III GG
GG with ammonia life
GG with water life
Water giants
Helium-rich GG

Only missing class IV and V. If it had a GGG it would be near perfect.

Spoiler

On the subject of helium rich giants, I vaguely recall old threads discussing their rarity but can't find them now. Are they particularly rare or noteworthy? (The planets, not the threads about them)

 

[Sapyx]

Here's my "Sudarsky Bingo" near-winner. Mine has the Class IV and V, but no Class I, and also no Helium-rich or Water Giant.

As for Helium rich giants, I think you want the "Helium Hunters" thread, here.

 

[Red_Beard_98]

Whenever you find one Helium-rich GG you should check neighboring systems as well. I found one system with 10 or 11 of them then checked near-by systems and found a total of 26. The only ones I have found.