Zero G Sports Arena
From the Galactic Civilizations Wiki
| Improvement Name | Zero G Sports Arena |
| Short Description | Increases happiness. |
| Improvement Type | Normal Project |
| Build Cost | 300 |
| Prerequisites | Zero G Sports Arenas |
| Improvement Effects | Morale +20% |
| Obsoletes | Extreme Stadium |
| Long Description | Teams battle it out without gravity. |
