The Gravitron is a large disk used by PsiCorps found only in the campaign. It can generate a gravity field on the ground, slow and flip enemy ground units and kill approaching enemy air units instantly. However, it will always stay at its location and not move even when being attacked, making them vulnerable to anti-air.
Another UFO, Yuri must have an obsession. Watch out, we don't know what it is. We're receiving readings of a strong gravity field manipulation around it though.
—Soviet intel during Operation: Earthrise
- Gravitrons only appear in Earthrise as unbuildable, limited enemy units. They are scattered everywhere on the map, causing trouble to the player's Cosmonaut spamming tactics.