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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
The patch notes listed below pertain to the Desktop version Desktop version.
Added items are likely included in Console version Console version and Mobile version Mobile version as well. Bug fixes for Console and Mobile can be found in Console history and Mobile history, respectively.

The 1.3.4 update focuses on content crossover from Dungeon Defenders 2. Added new visuals and water effects and a world seed feature.

Old One's Army

  • Invasion event featuring enemies, weapons, and gameplay mechanics inspired by Etheria: the Dungeon Defenders 2 universe.
    • This event will play like no other in Terraria - featuring a brand new mechanic where you protect an artifact from invading enemies with the help of a unique defensive structure system.
    • This multi-tiered event allows players at multiple points in the game to experience scaling difficulty, with corresponding loot.
    • Enjoy rewards in the form of armor, weapons, pets and more, all straight from the Dungeon Defenders 2 universe!
  • The Tavernkeep, a new NPC from the Dungeon Defenders universe, has arrived. He will be offering a variety of Etherian loot and gear in exchange for an exclusive currency earned by playing the new invasion!

Other new features

  • Completely redesigned liquid visuals. Enjoy the ripples and waves, as the player, enemies, and projectiles now have a visible impact when they enter and move through water.
  • The Blizzard weather event now has a new, unique ambient sound when active.
  • Toggles for recently-added visual and water effects that will allow players to balance beautiful visuals and performance to fit their preferences.
  • A new ability for Summoner players to direct their minions to attack a specific target.
  • Desktop Only: An experimental new world seed feature (this will be inactive by default, see below in the Changes section for more details).

New items

  • 4 new sentry summons, each of which has three tiers of potency.
  • 10 new weapons.
  • 8 new armor sets.
  • 5 new accessories.
  • 2 new pets.
  • 1 new light pet.
  • 3 new boss masks and trophies.
  • 2 new decorate furniture items.
  • 1 brand new “Personal Safe” style furniture item, in the style of the Piggy Bank and Safe.
  • A brand new currency which can be spent with the Tavernkeep for much of the above.

Item list




Sentry summon weapons


New enemies

  • 10 new enemies, many of which can become visibly (and mechanically) more powerful as gameplay progresses
  • 2 new invasion style mini-bosses.
  • 1 new boss.



  • 1 new music track based on the Dungeon Defenders 2 OST, complete with a matching Music Box.
  • Over 200 new sound effects inspired and adapted from Dungeon Defenders 2.
  • While Terraria recived the 2D TD mode, The Old One's Army, Trendy Entertainment recived the Dryad Hero for DD2.


  • The way Sentry Summons function has been changed somewhat.
    • Outside of the DD2 Invasion event, you now have a limit of one sentry summon at a time.
    • Some of the 1.3.4 content can increase this limit.
    • Unlike before, when the sentry limit is above 1, you can summon multiple versions of the same sentry. For instance, with a sentry limit of 3, you could summon 3 Frost Hydras at the same time.
    • Summoners can now direct their minions to attack a specific target of their choosing. To do this, the summoner must Right Click over an enemy while holding a minion summoning staff. Minions with line of sight on that enemy will target it immediately. However, if the minions do not have line of sight, they will continue to attack targets at random.
  • We’ve added an experimental new seed feature to World generation. All worlds generated in 1.3.4 and beyond will have a seed attached to them. You will also be able to set the seed for a world on world generation. PLEASE NOTE that this feature is not active by default. To activate it, please follow these steps:
    • Find Terraria’s config.json file. On Windows, this should be found in Documents>My Games>Terraria.
    • Open the config file with a basic text editing program, such as Notepad.
    • The 12th line (13th if using Notepad++) in the config file is labeled "UseExperimentalFeatures" and will be set to "false”".
    • Simply change this to “true” and save the config.json file. The next time you launch Terraria, the option to view and set world seeds will appear.
    • Please be aware that this is NOT a retroactive feature, and cannot display the seeds for worlds created before 1.3.4, as the data is simply not stored there. Additionally, you must run launch Terraria in 1.3.4 before the option will appear in the config file.
  • It no longer rains in the space biome.
  • Pumpkins can be broken with weapons instead of pickaxes.
  • Red blood particles drastically reduced.

Bug fixes

  • Fix for AMD Graphics Card related issue involving Living Flame Dye.
  • Fixed edges of screen getting inverted colors during a blizzard.

Wiki pages patched

  • References