Naval Warfare: The Summer 2025 Expansion Has Launched!
1 day ago
Naval Warfare has officially launched!
KARDS' ninth major expansion has made landfall on June 18, 2025, unleashing a surge of 87 brand-new cards, the game-changing Convert mechanic, and the debut of the Navy subtype. The battle lines have shifted - are you ready to command the seas?
This summer’s expansion sets a bold new course for KARDS, introducing powerful new tools to outmaneuver, outthink, and overwhelm your opponents. With naval supremacy now a decisive factor, Naval Warfare represents a pivotal deployment in your campaign for dominance. Whether you're a veteran admiral hardened by countless skirmishes or a newly commissioned commander eager to prove your mettle, this expansion offers a tide of strategic depth and thrilling new possibilities.
Log in now to claim your 2 free Naval Warfare packs and dive straight into the action!
Key Features of Naval Warfare
87 New Cards
Reinforcements have arrived across all fronts, with 15 new cards for each of the main nations and 3 new cards for each of the allied nations. Iconic naval units, new mechanics, and strategies have arrived that will reshape the meta. The high seas are brimming with tactical potential that are yours to seize!
New Subtype: Navy
Bring legendary warships under your command with the all-new Navy subtype. These named naval vessels are more than powerful cards - they come with the power to manipulate decks and employ powerful strategies to gain the upper hand against your opponent.
Get all the intel in our dev blog:
New Mechanic: Convert
The Convert mechanic introduces a dynamic layer of warfare - transform cards across the hand, battlefield, or deck into something entirely new. Use it offensively or defensively; it can strengthen your hand or cripple your enemy’s plans.
Get all the intel in our dev blog:
New Neutral Spawn-Only Cards
Linked directly to Convert, three new neutral spawn-only cards represent core elements of wartime logistics and misfortune:
PLAN
PRODUCTION
ROUTED TROOPS
These cards surface only through specific mechanics - watch for them as battle conditions evolve.
Get all the intel in our dev blog:
Card Balance and Meta Updates
Naval Warfare arrives with 12 targeted balance changes, alongside a rotation of 107 cards out of the active pool and the return of 20 from Reserves - each aligned with the naval and convert themes.
Get all the intel in our dev blog:
Nation-Specific Features
Each nation receives tailored reinforcements to align with its strategic identity:
Britain
Britain strengthens its command of land and sea with reinforcements that reinforce its mastery of battlefield control and calculated precision.
At the heart of the British doctrine lies top-deck manipulation, enabling commanders to place critical cards exactly where and when they’re needed. This expansion introduces key cards such as HMS BELFAST, GORDON HIGHLANDERS, and the agile MOSQUITO B Mk IV and F Mk II, expanding naval, aerial and ground capabilities. A mini-theme of building up powerful plays and unleashing them is embodied in cards like CHAIN HOME and HMS FORMIDABLE. Convert plays a secondary role, offering tactical flexibility, while a strong Navy presence adds new depth to the Royal Navy’s operations.
Germany
Germany brings a ruthless edge to the battlefield, defined by its embrace of negative Convert as its core doctrine.
Cards like CAPITULATION and 108. PANZERGRENADIER exemplify this approach - turning enemy assets into worthless liabilities and controlling the terms of engagement through psychological and material disruption. The arrival of the KM TIRPITZ reinforces Germany’s growing naval presence, while the Navy subtype supports a secondary push into sea-based tactics. A minor emphasis on removal mechanics and attack buffs rounds out the German playbook, designed to punish overextension and dismantle enemy momentum.
Soviet Union
The Soviets double down on transformation and resilience with a strategic focus on positive Convert. Their approach rewards those willing to invest in long-term power - upgrading units, shifting momentum, and exploiting battlefield evolution.
Cards like VICTORY BANNERS, SURVEIL, and HONORIFICS embody this transformation, while the 51st RIFLE BRIGADE and 312th NOVGOROD serve as potent Convert payoffs - delivering major battlefield impact once the investment pays off. Supporting this are themes of self-kredit drain, offering power at a price, and counter-offensive support, empowering comebacks and decisive strikes. Soviet strategy in Naval Warfare is about absorbing pressure and retaliating with overwhelming force.
USA
The USA deploys with full naval superiority, making Navy its core theme in this expansion. Key cards like USS FITCH, USS ARCHERFISH, and the 22nd MARINES spearhead a doctrine built around stacking and exploiting the top of the deck.
The American playstyle revolves around controlling the pace of battle by preparing key card sequences and reaping the benefits when drawn. A secondary air frontline theme bolsters offensive presence, while fighter tokens provide flexible tools for crowd control and rapid response. The U.S. excels at calculated momentum - every draw a weapon, every move deliberate.
Japan
Japan’s naval heritage takes center stage, with a sharp focus on Navy as its primary identity in Naval Warfare. Reinforcements like the IJN MIKURA, IJN AKAGI, and THE TIDE TURNS showcase the empire’s seaborne strength and tactical innovation.
Japan’s strategy now weaves in a deck-shuffling theme, allowing it to obscure intentions and disrupt predictions. An Intel element adds to its deception-based gameplay, offering glimpses behind enemy lines. Precision, unpredictability, and overwhelming naval power make Japan a formidable force in this new theater of war.
Allied Nations
The minor nations align with the global strategic shift, each receiving a trio of cards that enhance their battlefield presence and further their distinct identities. These reinforcements integrate into the broader systems of Navy and Convert, serving as critical components in composite decks or standalone tactical plays. Their impact may be subtle, but in skilled hands, these nations provide vital support across the ever-expanding front lines of Naval Warfare.
Join The Fight!
This is your moment. With Naval Warfare, KARDS enters a formidable new phase - where victory isn’t just won on land or in the skies, but forged in the cold, calculating depths of naval command.
Deploy your forces, take command, and leave your mark on history.
