About the Game

Drop Duchy takes on the iconic geometric puzzle gameplay we all know and love with a fresh perspective: instead of simply clearing lines, you'll be thoughtfully building a realm using pieces of various shapes and types to overcome enemy challenges.
A mix of deckbuilding, puzzle and rogue-lite, the game offers a new gameplay designed to hone your appetite as a block-stacking tactician. Optimization is key to collecting precious resources, protecting your castle, and building your army.
Defeat is not the end, though: use the experience gained in previous runs to unlock even more content!

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In each round of your run, Drop Duchy offers you a fresh and unique landscape to work with. Place tile pieces as you would in a typical block-dropping game but with a strategic twist: you need to align them to maximize their activation rules, producing maximum resources and units.
Selecting the optimal structures to place next to blocks of lush forests, wild rivers or grassy plains is crucial for maximizing your materials use and nurturing a bustling realm.
Forming lines grants bonuses, yet the ultimate goal is to pack up the most resources gradually. These resources will be crucial to build up your army bit by bit, ensuring your kingdom is well-protected against the enemy threats.
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Select your path, gather your troops to outnumber your enemies, and reclaim the regions under their control. But be careful: letting your castle take too much damage can lead to defeat.
Successful battles lead your forces down branching, decision-filled paths in a march to storm the enemy fortress.
If your army falls before capturing the bastion, you can quickly jump back in and try a new strategy, thanks to a cleverly designed gameplay loop.
Adapt, conquer, and keep the action moving!
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Grow in power with a rich deckbuilding system: build and enhance constructions with over 110 unique cards, each offering powerful upgrades and modifiers. Unlock new possibilities when using building or technology cards, each granting new bonus structures to boost soldier recruitment & various other perks. Customize your deck to suit your strategy and optimize your realm’s growth.
As you progress on your run, trade with markets or guilds to acquire valuable resources, use them wisely to upgrade your deck, make strategic decisions, and choose your path for the next round.

Drop Duchy features a robust meta progression system with over 100 unique misssions! Climb the ranks and unlock various bonuses such as increased resources, new cards or additional health.
These missions are intertwined with the three playable factions: The Duchy, The Republic, and The Order, each offering exclusive faction quests that grant faction-specific rewards. Completing these objectives across your runs not only tailors your strategy but also improves your chances of success, ensuring that every playthrough contributes to your long-term progression and victory.

An original mix of puzzle gameplay and real-time strategy
A brand new game experience with each run thanks to procedural generation
Play with 3 Factions: The Duchy, The Order, The Republic
Meta progression: over 100 challenges designed to help you through your journey
Build the perfect deck with over 110 unique cards
An elegant and charming art direction to please your eyes
An engaging and ever-evolving soundtrack to please your ears
Choose your path between lakes, glades, forests, villages, guilds… and more!
Screenshots
10 images
Version Information
Steam Patch Notes
Official update history
Hear ye, hear ye!
We're back with a new update to correct the following bugs:
Patch notes - December 23, 2025
Fixed bug where the next Ascension tier was validated a second time when finishing Endless
Fixed bug where boss mastery achievements was awarded to the user when they killed themselves with Raiding Camp
Fixed Sacred Ground reactivating fully when more Faith was gained since the last activation
Fixed Fury troops being considered as enemy for some card effects (Boathouse, Prison)
Fixed Ascension increased refill defence cost not applied in Grid preparation menu
Added an option to skip Fortune Teller if you don't want to remove any cards
Fixed "Build an outpost" option of The Order , now the cost is increasing as designed
Fixed Basilica conversion counter staying at zero after undoing the last piece
Fixed Basilica being able to convert a piece undone back to reserve
Fixed Cairns being able to receive units from others buidlings after being deactivated
Fixed Fortune Teller and University unable to generate enough options if too many cards are banished
Fixed Prison not appearing as a "building with garrison" in Fortune Teller
Fixed bug where user could hire Mercenaries in addition to the maximum 8 buildings
Fixed not being able to start the combat phase with gamepad when not all groups are selected with The North
Fixed Work for Hire challenge completed with pillaging 3 times the same depot
Fixed Sea Raiders challenge triggering on pieces that are undone
Fixed reset controls not resetting properly to defaults in some cases
Fixed localization issues in French and Russian
[img src="{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png"]
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news:
X / Twitter:
Hear ye, hear ye!
We prepared a small update on the previous patch, to fix the “Sea Raiders” Steam achievement. It now unlocks correctly after completing the requirements.
[img src="{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png"]
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news:
X / Twitter:
Hear ye, hear ye!
We prepared a new update which corrects the following bugs and issues:
Patch notes - 18th September, 2025
The Wall can now again be placed outside the grid and lose all units when doing so
Can click/press right stick to toggle on/off the building tooltip, allowing to see the range indicator
Fixed the 10k limit on fight groups
Fixed the challenge "Dungeon Mastery" not triggering (unless you had only level 3 buildings)
Fixed gamepad button to refill Defense not working in map locations menu
Fixed short window to perform actions after triggering constellation, leading to duplicate pieces
Fixed Centaurus constellation able to duplicate the Dungeon
Fixed faith counter not updated if Reliquary was upgraded during the preparation screen
Fixed Cartographers counting piece that overlapped over the grid
Fixed Provision Convoys not displaying the lost resources
Fixed Scavengers gaining when allies are removed with Sacred Ground
Fixed Scavengers not triggering with Devotion
Fixed Enclosure appearing in the wrong category in University
Fixed incorrect battle number preview when using Strength in Numbers and having a group of 0
Fixed impossible to click on the bottom left building on Boss 3 grid if you had many technologies
Fixed highlight not working on last hovered building
Fixed tags showing in Spanish translation
Fixed incorrect challenge translation in french (constellation in a run)
Fixed possibility to use right stick to inspect piece while in the card selection post-round
Fixed Blacksmith triggering Milita tech
Fixed Elite enemies Old Tower & River Castle not triggering properly
Fixed gamepad control in the Deck menu incorrect if opening menu with a different sorting
Fixed many issues in Spanish localization (line jumping, tags)
Fixed Isolation activating when it shouldn't (and spawning VFX or completing challenge)
Fixed Monument "Unit sent" stats
[img src="{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png"]
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news:
X / Twitter:
Hear ye, hear ye!
Here comes the first DLC update: a brand new faction for DLC owners, plus tons of free content and quality-of-life improvements for everyone!
Patch notes - August 18th, 2025
DLC
New Added the DLC faction "The Tribe" with their cards & quests
FREE
New Added 7 new commun buildings & 5 new common tech, that can be unlocked from the Progress Tree
New Added 16 new common challenges to improve progression's pacing and have enough to unlock the new cards
New Added an "endless" mode: you can continue after winning a run, to try going as far you can (only combat, more and more enemies including some "Elite" variants, unplaced enemies deal direct damage)
New Added 20 elite variants to buildings: only enemy can use those in the endless mode. The Elites are visible at the bottom of the Collection menu (after meeting them at least once)
New Added a new "Constellation" mechanic: 7 powers to select from a dedicated menu and trigger during the round. This mechanic is unlocked from the Progress tree (unless you already had a save with enough progress)
Added the ability to "banish" progress tree cards from the loot pool
QOL
Added an option to preview the battle result without making the calculation
Added new deck sorting options in the Deck overview menu
Added an option to change the piece's default falling speed
Added hints in the end round recap to remind the players of mechanics they might have missed
Added a tooltip to the Krak des Chevaliers explaining the concept of "area"
Added a tooltip explaining "Natural terrain"
Added the button to refill defence in exotic map locations
Added a scroll bar to the progress tree
Clarified the wording of several cards & challenges
Added a banner showing if a card is selected when visiting the deck in the Preparaiton phase
Added a green check on completed trials
Added a button to reset the whole combat path (mouse only)
Added text to better understand the Belfry upgrades
Balancing
Reworked the Mercenary mechanic: they can now go in locked spaces (still without exceeding the limit of 8 buildings)
Increased the gains of Rangers Base
Removed the "Unique" from the Castle
Updated The Keep's central towers to reduce the number of watched squares
Added a maximum on the technology card "Isolation"
Changed Charcoal Kilns to also work with the grid border
Added a keyword "Mighty Garrison" to explain better why some enemies have higher garrison (Prison, Raider Colony)
Changed the Duchy quest reward so that Fortified Farm starts level 2
Market & Warehouse cards can connect through city like the Belfry, for more consistency
Changed Taxes for a more consistent & easier to trigger effect
Removed the faith gain from Krak des Chevaliers
Changed Forced Conversion to a weaker but more consistent effect
Increase Stone requirements for many buildings
Buffed the Carpenter & Castle cards
Lowered Crusaders gains for leftover units at the end of the round (now 2:1)
Lowered The Order Resource expedtion cost
Lowered requirements The Order quests: For the Cause & General Mobilization
Buff crusaders for cards Military Chaplaincy & Crusader OutpostLowered gains Provision Convoy
Increased Hard difficulty parameters
Lowered Strenght in Numbers gain
Resources that were given to Boss 3 bribery are now awarded after the round (if the player continues to Act 4)
Erudition tech no longer gives +1 level to the fourth card in Act 3
Siege Camp can activate several times for a building if it didn't hit the limit yet (more consistent with other effects)
[img src="{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png"]
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news:
X / Twitter:
Hear ye, hear ye!
We're back with a new update to correct the following bugs:
Patch notes - June 6th, 2025
Fixed Taxes card not working
Fixed Blacksmith not activating for some buildings with End round effects (e.g. Horse Stable, Belfry)
Fixed Enclosure card triggering several times
Fixed Bridge not being counted as a Building for card effects such as Krak des Chevaliers or Fluvial Guard
Fixed Krak des Chevaliers inconsistent behavior when using the Fertile Grounds
Fixed Blacksmith re-triggering indefinitely in some cases
Fixed buildings not receiving resources/units when using the Land Expansion technology
Fixed squares spawned by Noble buildings not accounted for some card effects (e.g. Daily Bread)
Fixed squares "explored" by Manor not counting as explored for card effects such as Daily Bread or Shipyard
Fixed Horse Stable gaining twice the units when placed horizontally
Fixed Reliquary incorrectly counting how many faith it add
Fixed Cathedral giving incorrect amount of faith in some complex sequences
Fixed By the Sword giving an incorrect amount of troops if you had a lot of Faith
Fixed Face the Enemy challenge reset when reloading the save
Added a small delay to prevent the player from accidentally locking a piece that just moved down
Fixed a bug where spamming rotate would incorrectly lock the piece floating in the air
Fixed card tooltips not updating when upgrading a card (with a gamepad)
Fixed UI stretched when displaying three round modifiers
Fixed playtime stat not displaying the number of days (now adding days x24 to the hours)
Fixed incorrect icon on the faction quest Headquarter
Fixed cards not having the correct displayed range in the Long Range trial
Fixed unique/other class buildings appearing as end-round rewards after rerolling a lot
Fixed "cards that work on Forest" appearing as a Guild choice despite removing the Forest
Fixed enemy groups that include a Raider Colony spawning with an excessive amount of garrison
Fixed infinite activation loops with the Faith -> now has a maximum of 99
Fixed several Japanese translations to improve understanding of adjacent effects
Fixed tags appearing in some traditional Chinese lines
Fixed a bug where Bosses would be hard to select on the World Map
Fixed a bug where reloading a save in the grid would disable the sound effects
Fixed a bug where winning a combat wouldn't trigger some challenges related to winning them
Fixed a bug where Sacred Ground would not trigger on The Wall
Fixed a bug where Gold Diggers card effect would be delayed
Fixed a bug where spamming the A button on a gamepad while the game is loading would result in a black screen
Fixed a bug where Organized Defense (Faction Challenge) would trigger at 60 recruited units instead of 40
Fixed a bug where Recluse Monk would give more defense for the first mountain piece
Fixed a bug where Bastion-generated plain tiles wouldn't count toward line completion
[img src="{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png"]
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news:
X / Twitter:
It's officially been one week since Drop Duchy has been released, and we're back with a new update to correct the following bugs:
Patch notes - May 14, 2025
- Fixed enemy Fluvial Guard sending (friendly) units to player river buildings
- Fixed technologies not resetting properly at the end of the round (if you used them a round, you could no longer do it at the next round):
- Daily Bread
- Blessing
- Daily Bread
- Fixed terrain-related buildings sometimes appearing as enemies even if the terrain was removed: no more Watch Towers in a grid without plains, or Shipyard in grid without river (if you suppress the terrain type, ennemis shouldn't have terrain-related buildings of the deleted terrain)
- Fixed the displayed type of cards:
- Fertile Grounds now properly shows "Production"
- Exploited Lands now properly shows "Production"
- Fertile Grounds now properly shows "Production"
- Fixed being able to skip to Act 3 by spamming A at the end of the Act 1 screen (trigger 2 screens of terrain choice when spamming during the "boss defeated" screen)
- Fixed expedition gains not updating after upgrading the Holy Land card while the menu is open
- Fixed "Build a church" expedition not giving Faith for this round if you had already entered the location
- Fixed exploit with Forced Conversion tech turning boss units
- Fixed Health gains going towards the Boss 3 gauge instead of the Health bar (tech Blessing, Herborist)
- Fixed audio cues missing when reloading the save during a round
- Fixed swapped translations between some faction quests descriptions in all languages except English
- "Upgrade Belfry x10"
- "Upgrade Holy Crusade"
- "Upgrade Belfry level 6 before the Wall"
- "Upgrade Belfry x10"
- Fixed Windmill description incorrectly requiring forests in Russian
- Fixed challenges "Win against boss" not triggering if both camp end up with zero units left
- Fixed The Wall piece not dropping down automatically, leading some players to think it was stuck
- Fixed Ukranian translations on 5 cards to clarify the difference between "connected" and "adjacent"
- Fixed the bug in which opening the Deck menu after selecting a card in Guild/University allowed to select one again
- Fixed inverted values between Boss 2 & 3 additional recruits (Boss 2 is 10, Boss 3 is 20)
- Fixed tech icons overlapping with the piece count & some pieces (on Boss 2), now reducing in size accordingly
- Fixed Scoundrel challenge not triggering if you had only one of the two cards
- Fixed Devotion card applying its effect several times to the same enemy building
- Fixed Crusader Outpost not working on Fertile Grounds
- Fixed squares spawned by Noble buildings not triggering exploration despite the row being full
- Fixed "Hold the Door" quest not unlocking if the player wins the combat with zero units left
- Fixed units icons staying on non-military buildings after they received units from Fluvial Guard
- Fixed Church Tither appearing as a random reward despite removing the Forest terrain
{STEAM_CLAN_IMAGE}/45096178/3ff709d85a40117074f9ec86c66ef20f4a35b191.png
If you want to discuss strategies and share your favorite builds with fellow rulers, don’t hesitate to join our official Discord server! And, don't forget to follow us on Social Media to keep up with the latest news!
X / Twitter:
- https://x.com/SleepyMillGames
- https://x.com/TheArcadeCrew
And join us on Facebook, Threads, Instagram, and Bluesky!
Current Release
Build 21903673
Uploaded Jul 03, 2026
System Requirements
How to Install
DropDuchy.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
1.8 GB
21903673
D2EF7E7B
00c557d9b77e7c21ce4675b4bce6acf08c2545a9df4f5a542b8fc9d3111586fa
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