Terraria 1.4.5, officially known as the “Bigger & Boulder” update, is not a small balance patch or minor content drop. It’s one of the largest free updates in Terraria’s history, adding hundreds of new items, brand-new world generation options, long-requested quality-of-life improvements, and unexpected crossover content that reshapes how the game is played.
Whether you’re a returning veteran, a creative builder, or someone jumping into Terraria for the first time in 2026, this guide breaks down everything new in Terraria 1.4.5 — and explains how to actually use it.
TL;DR – Terraria 1.4.5 at a Glance
If you want the highlights first, here’s what the Bigger & Boulder update delivers:
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650+ new items, including weapons, furniture, accessories, and cosmetics
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Skyblock world seed plus expanded secret seed combinations
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Major crafting & inventory UI overhaul
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Dead Cells and Palworld crossover content
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New mounts, transformations, pets, and visual effects
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Massive quality-of-life improvements for building, multiplayer, and progression
This update significantly improves replayability, usability, and creativity, making Terraria feel fresh again even for long-time players.
What’s New in Terraria 1.4.5 (Big Picture Overview)
Terraria 1.4.5 focuses on three major pillars:
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Player freedom – more ways to customize worlds, characters, and playstyles
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Reduced friction – crafting, inventory, and UI improvements remove long-standing pain points
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Replay value – Skyblock, seed combinations, and crossovers encourage fresh playthroughs
Instead of pushing a single new biome or boss, Re-Logic expanded systems, which is why this update feels so impactful across all stages of the game.
New World Generation, Skyblock & Secret Seeds Explained
Skyblock Seed Mode
One of the most requested features in Terraria history is finally official.
Skyblock mode starts players on a small floating island with extremely limited resources. There’s no traditional underground to explore early on — survival depends on creativity, careful resource management, and understanding game mechanics.
Why Skyblock matters:
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Forces players to engage deeply with crafting systems
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Creates a completely different early-game experience
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Perfect for challenge runs and content creators
Skyblock worlds are ideal if you want a fresh Terraria experience without mods.
Special & Secret Seed Combinations
Terraria 1.4.5 expands how world seeds work:
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Multiple special seeds can now be combined
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Secret seeds apply unique rules, visuals, or difficulty twists
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World creation menus are clearer and more flexible
This dramatically increases replayability, especially for veteran players who’ve already beaten Terraria multiple times.
All New Items, Weapons & Gear (650+ Additions)
Combat Gear & Weapons
Terraria 1.4.5 introduces a large number of new combat tools, with special attention given to Summoner builds:
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New whip weapons expand Summoner progression
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Experimental and utility-focused weapons add variety
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More niche tools allow creative combat strategies
While not every weapon is endgame-viable, the added variety makes early- and mid-game combat far more interesting.
Furniture, Cosmetics & Decorative Items
Builders benefit massively from this update:
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Dozens of new furniture sets
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New paintings, lighting options, and decorative blocks
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Expanded vanity options and hairstyles
If building is your favorite part of Terraria, 1.4.5 feels like a creative expansion.
Dead Cells & Palworld Crossover Content
Dead Cells Collaboration
The Dead Cells crossover adds:
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Themed weapons
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Vanity armor inspired by the Beheaded
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Decorative items tied to the Dead Cells aesthetic
These items blend naturally into Terraria’s art style and are fully functional, not just cosmetic nods.
Palworld Collaboration
The Palworld crossover is more surprising — and more impactful.
Players can obtain Pals that:
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Assist with mining and tasks
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Support combat situations
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Add light automation-style gameplay
This crossover introduces companion-based utility without breaking Terraria’s balance, making it one of the update’s most talked-about features.
New Mounts, Transformations & Movement Options
Terraria 1.4.5 adds several transformation-based mounts, allowing players to temporarily become creatures like bats, rats, or fairies.
These aren’t just visual gimmicks:
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Some improve exploration
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Others offer niche mobility advantages
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They add fun, personality, and traversal variety
Movement diversity is one of Terraria’s strengths, and this update expands it even further.
Crafting & Inventory Overhaul (One of the Best Changes)
New Crafting Interface
Crafting received a massive usability upgrade:
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Item categories and filters
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Search functionality
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Automatic use of materials from nearby chests
This alone saves hours of inventory management over a full playthrough.
Inventory & Storage Improvements
Additional improvements include:
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Dedicated Banner storage menu
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Better stacking behavior
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Reduced clutter during long sessions
For returning players, this is one of the most immediately noticeable and appreciated changes.
Quality-of-Life Improvements Across the Game
Terraria 1.4.5 also improves many smaller systems that add up to a smoother experience:
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Spectator mode when dead in multiplayer
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Wiring and mechanism improvements
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NPC housing logic refinements
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Visual enhancements to lighting, weather, and backgrounds
These changes don’t steal headlines, but they significantly improve day-to-day gameplay.
Terraria 1.4.5 – Before vs After
| Feature | Before 1.4.5 | After 1.4.5 |
|---|---|---|
| Crafting | Manual, cluttered | Filtered & chest-linked |
| World Variety | Limited seeds | Skyblock + seed combos |
| Inventory | Banner clutter | Dedicated banner menu |
| Replay Value | Moderate | Extremely high |
Terraria 1.4.5 FAQ
Do I need to start a new world?
Yes, to experience Skyblock and new world generation features fully.
Does 1.4.5 break old saves?
No — existing worlds still work, but won’t gain new world-gen content.
Is this the final Terraria update?
Re-Logic has said “final update” before, but 1.4.5 proves Terraria still has life left.
Best Tips for Starting Terraria 1.4.5
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Start a new world to experience everything
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Try Skyblock if you want a real challenge
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Learn the new crafting UI early — it saves time
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Builders should explore new furniture sets immediately
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Multiplayer groups benefit hugely from QoL changes
Final Verdict: Is Terraria 1.4.5 Worth Playing in 2026?
Absolutely.
Terraria 1.4.5 doesn’t just add content — it refines the entire experience. Between Skyblock worlds, crossover features, a modernized crafting system, and hundreds of new items, this update makes Terraria feel more polished and replayable than ever.
If you’ve been waiting for a reason to return — this is it.
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