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Map size

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Map size refers to the size of a Terraria world. Upon creation, on the Desktop version Desktop version, Console version Console version, and Mobile version Mobile version, the player can select either "small", "medium", or "large" for the size of the map to generate. On the 3DS version 3DS version, the player can select either "normal" or "expanded". The worlds are smaller due to less storage. An 3DS Version "expanded" world is the equivalent of a Desktop, Console, and Mobile Versions "small" world.

Dimensions of the different map sizes are as follows: (one block = two feet)

Map Size of map
Size of map
Accessible area
Accessible area
Floating Islands
3DS Version Normal 3500 × 1800 1750 × 900 3486 × 1786 1743 × 893 2–5
Desktop, Console, and Mobile Versions Small /
3DS Version[1] Expanded
8400 × 2400 4200 × 1200 8234 × 2234 4115 × 1117 2–3
Desktop, Console, and Mobile Versions Medium 12800 × 3600 6400 × 1800 12634 × 3434 6317 × 1717 4–6
Desktop, Console, and Mobile Versions[2] Large 16800 × 4800 8400 × 2400 16634 × 4634 8317 × 2317 4–8
  1. On the 3DS version 3DS version, expanded worlds are only available on the Western versions (North American, European) of New Nintendo 3DS.
  2. On the Mobile version Mobile version, large worlds are only accessible on devices with 1.5+ GB of RAM.

Map Size Comparison[edit | edit source]

Different world sizes may be better suited for different purposes. Players may find that creating many small worlds may be more efficient than creating large worlds due to the amount of memory needed.

Advantages of Small Worlds[edit | edit source]

Everything is closer and quicker to reach:

Advantages of Large Worlds[edit | edit source]

There is more space to build and explore:

  • Layer and biome transitions are more gradual.
    • The Wyvern spawn level is higher making above-ground housing safer at low altitudes.
    • Conversely, there is more below-ground space that counts as surface, which can be used for farms of "surface-only" plants like trees or mushrooms.
  • There is a greater chance of having lakes or pools big enough for fishing.
  • The Underworld is longer, potentially giving more time to defeat the Wall of Flesh.
  • The Celestial Towers will be more spread out, reducing the likelihood of the player's base and NPC homes being overrun.
  • The surface terrain tends to be more varied and interesting.
  • The evil biome or hallow is less likely to spawn near the Jungle. Verify

There is more "stuff" in the world:

  • There are more total chests and pots underground per world.
  • There are more materials, including ore and wood. For example, there is more wood already grown and more room to plant trees.
  • The Dungeon has a greater chance to have all three Dungeon Wall types.
  • There are more Evil Biome chasms. This means that there are more Shadow Orbs/Crimson Hearts to destroy, which drop unique and valuable items. There are also more Demon Altars, which means there would be more Hardmode ores to generate.
  • The Jungle Temple possibly contains more traps and Lihzahrd Power Cells.
  • More meteorite crash sites can be in the world at one time.
    • Like with Wyvern spawn heights, this can also be a double-edged sword as a higher number of meteorite blocks are required in the world to prevent more meteorites from spawning and potentially destroying landscapes or player built structures.