Drop Duchy
A roguelike deck-builder meets Tetris-style puzzle combat.
Drop Duchy, released in 2025, is a single-player video game that merges roguelike deck-building with Tetris-inspired organization puzzles in a player-versus-environment format. The game was created by the French developer Sleepy Mill Studio and published by The Arcade Crew. It first launched on Steam on 5 May 2025, followed by a "Drop Duchy Complete Edition" for Xbox Series X/S on 28 January 2026, which debuted on Xbox Game Pass. Versions for Nintendo Switch and PlayStation 5 arrived on 21 April 2026.
Each playthrough begins with the player selecting a faction, each offering distinct cards, abilities, and mechanics. A run is split into three acts of rising difficulty, featuring battles, trading posts, resource points, and other deck-building locations, ending with a unique boss per act. During battles, players use collected cards and falling terrain pieces in a Tetris-like grid. Completing rows—called "exploring"—yields resources based on the terrain types in that row, such as wood from forest pieces. Players also place building pieces to generate resources or military units, while enemy buildings must be placed as well, supplying the opponent’s forces. The playing area is 13 squares tall; if blocks exceed this height, the round ends.
Buildings fall into categories like production (providing resources) and military (supplying units). A building’s function often depends on its placement. Military units come in three types: archers, axemen, and swordsmen. They follow a rock-paper-scissors advantage system: swordsmen are 50% stronger against archers but 50% weaker against axemen, archers are stronger against axemen, and axemen are stronger against swordsmen. At the end of a round, the player’s forces battle the enemy’s. The player chooses the order of engagements, selecting which of their units face which enemy units to exploit advantages. Groups can be merged. The side whose army is wiped out loses; the winner keeps any remaining units. If the player loses, the surviving enemy militia subtracts from the player’s starting 50 lives. Reaching zero ends the run, forcing a restart—a hallmark of the roguelike genre.
Between rounds, players can upgrade their deck by collecting new building or development cards, using resources from explored rows. Cards can also be sold for gold. The main goal is to defeat all three act bosses.
Quick Facts
- Title
- Drop Duchy
- Developer
- Sleepy Mill Studio
- Publisher
- The Arcade Crew
- Platforms
- Windows · Xbox Series X/S · Nintendo Switch · PlayStation 5
- Modes
- Single-player
Facts from the source article.
Lore & Background
Drop Duchy is a single-player game where the player chooses a faction, each with unique mechanics, cards, and abilities, before starting a run divided into three acts of increasing difficulty. Each act consists of battles, trading posts, resource collection points, and other deck-building locations, ending with a unique boss. During battle, the player uses collected cards and terrain pieces in a Tetris-style game, completing rows to collect resources and build a military to fight the enemy. The player must also place enemy buildings, which provide military for the opponent.
Gameplay revolves around blocks that drop from the top of the screen, each either a terrain piece (forest, plains, rivers) or a building piece. Buildings provide resources or military units. Completing a horizontal row 'explores' it, yielding resources from the terrain in that row. The player continues placing blocks until a block exceeds the 13-square-tall playing area. Military units include archers, axemen, and swordsmen, each stronger against one type and weaker against another in a rock-paper-scissors format. At the end of a round, the player chooses the sequence of battle, selecting which units face which enemy units.
If the player loses a battle, the number of opponent militia left subtracts from their total lives (starting at 50). When lives reach 0, the run ends and must be restarted. The aim is to progress through all three acts and defeat all three bosses, after which the player can enter endless mode. Meta-progression allows permanent unlocks via a technology tree using crowns earned from completing missions; the complete edition includes over 100 missions.
Reader's Guide
Drop Duchy received generally favourable reviews on Metacritic and strong approval on OpenCritic, with 89% of critics recommending it. The Games Machine praised the fluid gameplay and hybridization of real-time strategy and puzzle elements, finding the game replayable. Reception of the genre combination was mixed: Keith Stuart of The Guardian called it 'an ingenious experiment in game design by combination', while Kevin Purdy of Ars Technica complimented the gameplay loop and combos but contended the game did not seamlessly merge its genre influences and was unbalanced. Rock Paper Shotgun's Brendan Caldwell felt 'the elegance of Tetris clashes with the complexity of both deckbuilding and tactical numberwang'. Vandal's Juan Rubio commented positively on the genre integration and praised the aesthetics, though Ars Technica's Purdy found buildings and icons too small and similar. The game won 'Excellence in Game Design' at the 2025 indie DevGAMM awards and was nominated for 'Best 1st game' and 'Best game design' at the French Pégases awards, as well as for 'Strategy'.
Did You Know?
- Drop Duchy was the first project of Paris-based developer Sleepy Mill Studio.
- The game includes three types of military units: archers, axemen, and swordsmen, with a rock-paper-scissors combat system.
- Two DLCs were released: 'The Tribe DLC' (18 August 2025) and 'The North DLC' (5 December 2025), each adding a new playable faction.
- The Complete Edition launched on Xbox Game Pass on 28 January 2026.
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