Heart of Crown Online – An Unexpectedly Deep Deck-Builder Adaptation

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• DEVELOPER: illuCalab, FLIPFLOPs
• PUBLISHER: PLAYISM
• PLATFORMS: PC, Nintendo Switch
• GENRE: Deck-builder
• RELEASE DATE: December 18, 2025  
• STARTING PRICE: 28,99€
• REVIEWED VERSION: PC

Heart of Crown Online was supposed to be just another card-based game. Something I’d download, mess around with for a bit, maybe finish a few matches, and then quietly uninstall. But yeah, that didn’t happen. Spending time with Heart of Crown Online ended up feeling a lot more like sitting down for a proper tabletop session than a throwaway digital card game.

For anyone unfamiliar with it, Hearts of Crown started as a physical board game before being adapted into a digital deck-builder. What surprised me most is how faithful that adaptation is. I even double-checked online just to be sure, and yes, every card works exactly as it does in the real-world version. Nothing feels simplified or watered down, and the game never loses its original identity in the process.

Easy to understand, hard to master

On the surface, the gameplay is pretty easy to understand. Seven princesses are competing for succession, and your job is to support one of them by building influence through cards, resources, and timing your moves correctly. But while the setup is simple, the strategy underneath it goes much deeper than I expected. The more matches you play, the more layers you start to notice.

Each match begins slowly, with limited resources and a fairly modest deck. You gradually expand your options by buying new lands, actions, and support cards, shaping your strategy as you go. There’s a very clear “turning point” moment when you finally have enough coins to back a princess, and from there on, every decision suddenly feels much heavier. Early turns are careful and methodical, while the later stages turn into tense races where a single mistake, or a perfectly timed purchase, can decide the entire match.

What really kept me engaged was how different each princess feels to play. Lulunasaika’s early point advantage pushes you toward fast, aggressive strategies, while Lain and Shion reward patience and careful sequencing with extra turns. Bergamotte leans into more technical play thanks to her ability to recycle cards, while characters like Ohka and Laolily add a layer of unpredictability that can completely shift the flow of a match. Because of this variety, the game rarely feels repetitive, even after dozens of hours. You start forming preferences, adjusting your deck-building habits, and learning how to counter certain characters over time.

For new players, the Scenario Mode is honestly a great place to start. Instead of throwing you straight into open matches, it introduces mechanics gradually through themed challenges and preset decks. Each chapter feels like a small, self-contained lesson, showing how different strategies can emerge from the same core rules. It will feel confusing at first, no way around that, but after a few hours, things begin to click and the systems start making sense.

Singleplayer or Multiplayer, both are viable

Visually, Heart of Crown Online fully commits to its anime-inspired style. The artwork is detailed and expressive, with animated touches that keep the board from feeling static. Princess portraits, card art, and small visual effects all help the game feel polished. The interface is also well thought out: cards are easy to read, information is clearly presented, and menus never feel overwhelming.

That said, the visual style is also where I personally started to bounce off a bit. The fanservice-heavy character designs will absolutely appeal to some players, but I’ll be honest, I found a lot of the animations exaggerated, and I really wasn’t a fan of the princess voice acting. It got grating enough that I ended up turning the voices off entirely. That’s just my personal taste, though, and I can easily see others enjoying it.

Beyond single-player and customizable AI matches, which can actually be pretty aggressive and smart, the game also offers multiplayer with full cross-play between PC and Switch. Whether you jump into ranked matches or casual rooms, finding opponents is rarely an issue.

Ranked play is where the game really shows its teeth. At higher levels, matches turn into intense battles of efficiency, timing, and reading your opponents. Knowing when to commit to a princess, when to stall, and when to interfere with others becomes a mental game that rewards experience and foresight. The seasonal system and cosmetic shop add a bit of progression, but nothing gameplay-related is locked behind them, which I appreciated.

The final verdict

In terms of usability, the game is generally welcoming, especially if you’re already familiar with deck-builders. Most systems feel intuitive after a few matches, but the learning curve shouldn’t be underestimated. The basics are easy to grasp, but mastering timing, deck optimization, and long-term planning takes real time and practice.

By the end of it all, Heart of Crown Online surprised me. It’s a smart, respectful digital adaptation that stays true to its tabletop roots while fully embracing online play. It’s deep without being inaccessible, polished without feeling sterile, and competitive without locking players out. The aesthetic and learning curve won’t be for everyone, but if you’re willing to invest the time, there’s a genuinely rewarding experience here. For deck-building fans who don’t mind a strong anime flavor, Heart of Crown Online stands out as one of the more compelling options in the genre.

Review copy provided by the publisher