What is the best kind of tile for a steam shower?

The best kind of tile for a steam shower is porcelain or ceramic tile, as they are water-resistant, durable, and can withstand high humidity. Additionally, tiles with a textured surface can provide better slip resistance. It's essential to ensure that the grout used is also waterproof to prevent moisture penetration. Natural stone tiles can be used but may require additional sealing to protect against water damage.