Steam is the second fluid that is introduced to the player, first appearing in the Sewer. It is a substance that is primarily used in Allie Levels in Where's My Water? 2. Steam fills up Allie Ducks and provides her with steam to complete all her levels.
Steam is the lightest fluid and defies gravity and moves upward. It moves at a medium pace and does not bounce well. Steam is required to complete Allie levels and to collect Allie Ducks. Steam will not kill any Ducks. Steam cannot enter Swampy's or Cranky's pipes.