"A cool sphere with a recessed button on top."
Freeze grenades are not able to deal any damage, but they will freeze enemies in place where they are unable to move or attack. They are still able to use mental mutations, dodge attacks or use some skills like shield block.
In addition if the enemy doesn't get frozen or just thawed from being frozen, the temperature below freezing point will lower their quickness making them act slower. But every turn their temperature increase, so will their quickness until temperature gets back to normal.
Enemies with high enough cold resistance can be difficult to freeze.
Can be used as ammo for grenade launcher.