Ikikkk, a tundral pelagic world with extensive ice-covered oceans
Largely arctic Gaian Type worlds with ice-covered oceans that cover 80-100% of the surface. Compare with the GaianTundral subtype, which has 25-80% ocean coverage, and TundralXeric with 0-25% ocean cover.
Small and scattered continents, if present, will experience large amounts of precipitation, leading to large polar caps and land glaciation.
Some worlds have a mild equatorial climate, allowing ice-free seas and lakes; a few such worlds have life, especially in the open seas. Life may also exist around deep-ocean vents.