Platforms

Platforms are an alternative to blocks that can be walked on, but which also allow movement through the space they occupy. The player normally stands and walks on platforms as if they were ordinary blocks. Players can move down through a platform by pressing the key while standing on one. Players can also walk or jump horizontally through the space occupied by platforms, only treating the platform as "solid" when landing on them from above.

Walking enemies can similarly walk on or pass through platforms. Flying enemies like bats will fly up through them, but not down. Other enemies, including Harpies, ignore them entirely. NPCs will always climb up platforms.

Weapons and their projectiles will travel through Platforms. Any hook will grab them, but grappling while attached to the platform will only re-grapple it. Liquids flow through platforms, and lava will destroy most platforms upon contact. Sand will be supported by platforms.

Because of the high mobility a player has while on them, platforms can be used in a variety of ways: as a bridge across gaps that players can descend through without destroying, for roof access that keeps some enemies from getting through, or to create a fighting area above most enemies that players can fire down through while keeping out of reach of enemies, or Bosses. Also, since Piggy Banks, Chests, Crafting stations and most other Furniture can be placed on them (exceptions include gems and Crystal Shards), they can be used as a shelving to pack furniture into a confined space without restricting player movement.

Positioning Platforms
Platforms have four distinct positions, and can be cycled through them by hitting them with a Hammer: A fourth hammer blow will cycle the platform back to its default position. Only one platform can occupy a single block space, so you cannot have top and bottom platforms in the same space.
 * 1) In the default or "top" position, they occupy the top half of a block space. Only in this position can furniture can be placed on top of them. This includes a Bottle (or similar), which will count as a Placed Bottle for crafting Potions.
 * 2) After one hammer blow, they will change to the slanted Stairs form, oriented toward the player. They may also show "struts" beneath the slanted part depending on adjacent blocks, but this is purely visual.
 * 3) A second hammer blow will switch them to Stairs facing the other way.
 * 4) A third hammer blow will move them to their "bottom" position, horizontal but lowered to the bottom half of the block. Only in this position can hanging items (Chandeliers, Lanterns, Banners, etc) be attached beneath them.

Stairs


Stairs can face either direction, regardless of what side of a block they are on. Walking up stairs in the direction they face will raise the player as expected, but walking towards stairs facing away from the player will not have any effect. As with normal Platforms, pressing will cause stairs to be ignored.

Noncraftable Platforms


Team Platforms are sold by the Traveling Merchant. Golden Platforms are dropped during the Pirate Invasion. All other noncraftable platforms are found in the Dungeon.

Tips

 * Platforms can be used to prevent enemies from spawning (see Guide:Gardening).
 * Stairs are a key part of many advanced movement techniques, such as hoiks, NPC-proof doors, elevators, enemy traps, and so on.
 * Running up stairs (especially with Hermes Boots, Spectre Boots, Lightning Boots, or Frostspark Boots) is much faster than horizontal travel. When fighting the Dungeon Guardian, this is very useful. If one made enough staircases, they could even possibly outrun the Dungeon Guardian.
 * Hoiks can also be used to fight the Dungeon Guardian, but for players who do not want to go through the trouble of making one, this is the best strategy (along with using wings).

History
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