When used by Titan in the Navel, he will use the attack during all phase transitions, destroying a portion of the battle arena platform when Titan lands and dealing damage to the entire raid party. When used during the Weapon's Refrain, he will instead land in the center of the battle arena, dealing damage and knocking players across the battlefield.
The Ultima Weapon will use Geocrush only when it has Titan absorbed. When used, the boss will summon Titan to land in the center of the battle arena, dealing raid-wide damage to all party members.
Geocrush is used as an enemy ability by Titan in certain boss encounters. When used, it deals three magical earth-elemental damage attacks to a single party member.
In the original Japanese free-to-play versions, Geocrush I - III could be used by player characters if the player obtained a unique event version of the Titan signet. It functioned similarly to the ability seen in the premium release, dealing magic earth damage to targets three times, but its potency would be enhanced with each signet level. Players do not have access to the ability in the premium release.
Wrieg has access to Geocrush as a Burst Mode ability after using his Force Blaster Soul Break. It deals four jump earth and non-elemental attacks to a single enemy, but has a long delay before landing.
The Final Fantasy XIV version of Titan also uses Geocrush as an enemy ability, dealing earth-elemental damage to members of the player party. The amount of damage dealt depends on which version of Titan is fought in core and event dungeons.
Geocrush is an active earth-elemental physical ability that inflicts physical earth damage on a single target for 6 AP. It has high topple strength. It can be used by Titan.