Turfs

Turfs are in-game Items that represent chunks of Biome's soil. All ground tiles (except barren dirt) can be dug up using a Pitchfork to acquire a Turf item and reveal the bare dirt underneath. Each type of Biome, including Roads, produces a different Turf item when dug. Turf items can be placed on bare dirt tiles to change the Biome. Player placed tiles will act identical to auto-generated ones, such as allowing or disallowing Plants. New Plants or Mobs will not spawn, however. Turfs can also be used as Fuel and burn for 45 seconds in Campfire (90 in Fire Pit). They can also be researched for 20 research points