About the Game
Item effects depend not only on stats, but on trigger point direction and linkage conditions from positioning. Change positions to alter frequency and routes, creating your own chain rhythm.
Items vary in shape and size. Weigh active triggers against passive effects, carefully managing limited slots to find the optimal combination.
Each hero's exclusive items build different systems. Multiple tactical combinations meet 20 difficulty levels and unique mechanic monsters, relentlessly testing the depth of your builds.
Screenshots
8 images
Version Information
Steam Patch Notes
Official update history
# August 4, 2026 Changelog v2.3.3
## Features & Improvements
Workshop custom item configuration
Stronger relic configuration, including custom tags and related options
Improved Mod schema docs for relic effects
Option to disable the item trigger flash effect
Support configuring trigger assets for items
# August 3, 2026 Changelog v2.3.2
## Features & Improvements
Workshop custom item configuration
New item transformation condition: transform on battle end
Improved transformation logic: when multiple conditions match, one is chosen at random
Workshop MOD: Random Dragon Egg (randomly transforms into one of three dragons)
Workshop custom challenge configuration
New challenge rule: shop item limits
Limit by rarity
Limit by type
Limit by character exclusivity
## Fixes
Workshop custom tag colors not applying in item descriptions
Battle log could not be opened while debugging Workshop items
# August 2, 2026 Changelog v2.3.1
## Features & Improvements
Workshop custom items now support GIF/WebP formats
Animated sprites are supported now! ヾ(@^▽^@)ノ
# August 2, 2026 Changelog v2.3.0
## Features & Improvements
Workshop custom items now support custom tags
Tag localization
Tag colors
Improved BGM selection with Mod filtering
Improved character select list with horizontal scrolling
## Fixes
Fixed Q-key selling a backpack also selling items attached to it
Improved Codex stuttering when opening
Fixed Wishing Well rewards being claimable again after save/load
# August 1, 2026 Changelog v2.2.9
## Features & Improvements
Workshop Tool: custom item debugging support
Open Training Mode from the tool to test custom items
Save backpack layouts used during testing
Changes to item config take effect immediately after refresh
Removed length limits on Workshop custom items
# July 31, 2026 Changelog v2.2.8
## Features & Improvements
Resolution settings now support borderless fullscreen
Unlocking the Nightmare Challenge achievement also unlocks the Normal Challenge achievement
## Fixes
Fixed crit rate and crit damage not showing on the stats panel
Fixed Combo Rune triggers not incrementing Infusion Crystal Wheel counters
Fixed items in the temporary area not participating in the craft panel
# July 30, 2026 Changelog v2.2.7
## Features & Improvements
Creative Workshop:
Monsters support attack sound and cast sound settings
## Fixes
Fixed missing translations in some locales
Fixed monster bestiary not unlocking correctly
Fixed battle counters carrying over to the next battle
Fixed relics dragged directly into the relic slot not being recognized by the synthesis panel
Fixed several Blowdart Tanuki bugs (duplicate triggers, not triggering Combo Rune)
Fixed Sun-piercing Bow/Repeating Crossbow damage reduction not applying when triggering Skyfall Wand
Fixed accessory buff items showing their own trigger effect when buffing (buffs no longer count as self-trigger)
Fixed demon altar event asset loading failure
Fixed Winged Fairy stacking not applying remove-debuff multiple times
Fixed backpack buff points not correctly highlighting matching item types
Fixed incorrect Moonlight Sword description
# July 29, 2026 Changelog v2.2.6
## Features & Improvements
Creative Workshop:
Event asset configuration
Monster attack and cast animation assets
GIF format support for character, skin, monster, and event assets
Clear the clipboard after successfully starting a run with a seed from the clipboard
Beast Pact Seal can no longer trigger mediums
Added Steam in-game status display
## Fixes
Fixed being unable to set Golden Seed as a lucky shop item while owning Golden Branch
Fixed enemies not taking thorns damage from Patrol Strike (attack triggered when the ball completes a lap)
# July 26, 2026 Changelog v2.1.0
## Features & Improvements
New settings:
Battle log supports a detached window
Codex supports a detached window
Nightmare Challenge no longer requires clearing every challenge (Ascension 10 unlock is enough)
## Fixes
Fixed burn damage not counting toward physical damage in statistics
Fixed Bank Order event allowing repeated purchases after save/load
Fixed most medium effect descriptions missing “weapon”
Fixed Golden Seed and Golden Branch not appearing together in the shop
Fixed the in-game battle log being draggable off-screen
# July 25, 2026 Changelog v2.0.9
## Features & Improvements
Added track perimeter display to the backpack bar
## Fixes
Fixed Goldeater Shot counters gained mid-battle remaining after save/load
Fixed Beasttide Spirit Nest looping trigger chains
Fixed Garrison Flywheel base ball speed bonus not being applied correctly in the display
# July 24, 2026 Changelog v2.0.8
## Features & Improvements
Battle logs now support text search filtering
## Fixes
Fixed stack overflow caused by certain backpack configurations
Fixed save/load in the Lucky Fruit Machine event losing gold and tickets
# July 23, 2026 Changelog v2.0.7
## Features & Improvements
Repositioned the "Filter" button and changed it to open on click
## Fixes
Fixed Skyfall Wand buff doubling bug
Fixed Pet Cage buff not applying correctly after Living Doll Scroll turned dolls into creatures
Fixed battle logs being unscrollable when Play History is scrolled to the bottom
Fixed "Failed to start battle" error at battle start
Fixed save/load preventing the "Spore's Guardian" achievement from unlocking correctly
Fixed shop lag on high endless floors
Fixed being able to use Durian infinitely with the E key in the Lucky Fruit Machine event before redeeming it
Fixed Beasttide Spirit Nest not chain-triggering Healing Angel
Fixed dolls not being triggered by Beastcall Horn after Living Doll Scroll granted them the Creature tag
Current Release
Build 24545033
Uploaded Aug 06, 2026
System Requirements
How to Install
Backpack-Dungeon.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download Backpack Dungeon for PC with a direct link or via torrent. Get the full version of Backpack Dungeon for free. Backpack Dungeon is a Indie released by 夜喵.