I would like to suggest empire-wide unique starbase buildings that depend on the system features.
1. Nebula
2. Pulsar
3. Each class of star (M, F, G, A, etc).
4. Trinary system (gravitational chaos lab)
5. Planetary Rings (yield scales with planet size)
6. Asteroid lab (yield scales with sum of asteroid sizes)
7. Gas Giants (yield scales with sum of gas giant sizes)
8. Barren planet (yield scales with planet size)
While this adds some texture to the game, the gameplay fun is to encourage people to interact with the "background" element of the game. In a sense, the star type and gas giant vs not doesn't matter to the gameplay.
Having these empire-wide unique labs gives you a reason to be excited about discovering a tasty system with 3 huge gas giants (for example), or a asteroid-heavy system.
1. Nebula
2. Pulsar
3. Each class of star (M, F, G, A, etc).
4. Trinary system (gravitational chaos lab)
5. Planetary Rings (yield scales with planet size)
6. Asteroid lab (yield scales with sum of asteroid sizes)
7. Gas Giants (yield scales with sum of gas giant sizes)
8. Barren planet (yield scales with planet size)
While this adds some texture to the game, the gameplay fun is to encourage people to interact with the "background" element of the game. In a sense, the star type and gas giant vs not doesn't matter to the gameplay.
Having these empire-wide unique labs gives you a reason to be excited about discovering a tasty system with 3 huge gas giants (for example), or a asteroid-heavy system.