Knock on the Coffin Lid

Most roguelike deckbuilders treat narrative as garnish. A wisp of lore here, a flavor-text tooltip there, all in service of the real business of stacking damage multipliers until the numbers go brrr. Knock on the Coffin Lid, from Cyprus-based studio RedBoon, wants no part of that arrangement. This is a deckbuilder that opens with your own murder and dares you to solve it.

You die. You wake. A sardonic entity named Mortis—equal parts Virgil and stand-up comedian—yanks you back into the land of Midian, a bleak, faction-torn corpse of a kingdom fighting over an empty throne at the Northern Gate. From there, the hook: you remember. Every death, every branch, every catastrophic decision carries forward into the next run, and the game asks you to use that hard-won knowledge to rewrite the story. It’s the time-loop premise done with intent, not as a lazy excuse for permadeath.

RedBoon has positioned this squarely against the genre’s titan. The Slay the Spire comparison is unavoidable and the developers know it—they lean into the familiar three-lane card combat, the map of branching nodes, the relic-hunting compulsion. But they’ve bolted on two things Spire deliberately withheld: a real narrative with consequence, and a full RPG equipment system where the gear you wear physically rewrites your deck.

That’s the pitch. Whether the execution earns the ambition is where things get complicated. This is a bigger, messier, more talkative game than its inspirations, and its reach sometimes exceeds its grasp. But it reaches for something the genre rarely bothers with, and that alone makes it worth a look.

On Steam, the game holds a Very Positive reception—praise centers on the gear-into-cards design and the branching story, while criticism flags brutal difficulty spikes and a grind that overstays its welcome. Both halves of that verdict ring true in the design itself.

• Gear-as-Cards Equipment System: Weapons and armor don’t just tweak stats—they inject unique cards directly into your deck, and completing full armor sets unlocks punishing set bonuses. Your build is what you loot.
• Three Protagonists, Twelve Playstyles: Persival the warrior, Bjorn the werewolf, and Vanadis the beastmaster, each splitting into four subclasses that reshape how you play rather than reskinning the same engine.
• Memory-Driven Branching Narrative: Fully voiced dialogue, warring factions, political intrigue, and multiple endings—all navigable using knowledge carried across previous runs, turning metaprogression into an actual storytelling device.

The Gameplay Loop

Strip away the story and the skeleton is familiar. You move node-to-node across a branching map, picking fights, events, shops, and rest stops. Combat is turn-based card play—spend energy, play attacks and skills, manage a hand, survive. If you’ve touched Slay the Spire, Monster Train, or Griftlands, you’ll be fluent in minutes. The onboarding friction is low precisely because RedBoon isn’t reinventing the grammar of the genre.

Where it diverges—and where it earns its keep—is the equipment system. In most deckbuilders your deck is a closed garden you cultivate through card rewards. Here, half your deck is dictated by what you’re wearing. Slot a heavy axe and specific cards appear in your deck. Swap to a set of plate armor and you gain block, new cards and a completion bonus that turns a good build into a devastating one. This collapses the wall between “RPG character” and “card deck” in a way the genre has flirted with but rarely committed to. Your loadout is your strategy. It’s the most compelling idea in the game, and it’s a strong one.

The three protagonists deepen this considerably. Persival is your armored anchor point, the tutorial-friendly bruiser. Bjorn the werewolf toys with transformation mechanics and risk-reward aggression. Vanadis the beastmaster fights alongside summoned creatures, a fundamentally different tempo. Multiply each by four subclasses and you have a deep bench—twelve distinct approaches, not twelve cosmetic hats. Replay value is not in question. There is a mountain of content here.

The Narrative Engine

This is the swing-for-the-fences part. Every run feeds a persistent story. Your memory of past outcomes lets you steer factional conflicts, defuse or provoke political disputes, and unlock endings gated behind choices you couldn’t have made without dying first. When it clicks, it’s effective—death stops being a punishment and becomes an information-gathering exercise. You’re not grinding runs; you’re interrogating the plot.

Mortis is the connective tissue, and the writing gives him teeth. The fully-voiced dialogue is a real investment, and the sarcasm keeps the grimdark from curdling into self-parody. This is a world with a point of view.

Where the Loop Strains

Ambition has a bill, and the game pays it in friction. The difficulty doesn’t ramp so much as it ambushes. The design leans on brutal spikes—encounters that punish a slightly underbaked deck with the subtlety of a dropped anvil. For a game this dependent on gear you may not have looted yet, that’s a design tension it never fully resolves. The learning curve is steep, and not always by choice; some of that steepness is complexity, but some is a UI and tutorial layer that doesn’t always explain its own systems clearly.

Then there’s the grind. Unlocking the full roster of subclasses, gear sets, and narrative branches demands a serious time commitment, and the repetition needed to see everything can dull the shine on those clever systems. The very depth that makes the game distinctive is also the wall you have to climb, run after run, to appreciate it. This is a game that rewards obsession and quietly penalizes the merely curious.

The hand-drawn comic-book aesthetic is the game’s second-best idea after the gear system. Midian looks like a grim graphic novel that learned to move—inked linework, moody palettes, character art with real personality. It’s a deliberate style, not a technical flex, and it ages far better than photoreal ambition would. Combined with full voice acting, the presentation holds its own for a studio of this size.

The UI is the weaker link. There’s a lot of information to convey—card effects, gear stats, set bonuses, status ailments, narrative state—and the interface isn’t built to corral that density gracefully. Deep systems deserve legible menus, and this is an area where more passes would have paid off. Nothing appears fundamentally broken, but the polish is uneven where clarity matters most.

On Steam, this is a mouse-and-keyboard game through and through, and it’s the better for it. Card play wants precision—clean click-and-drag targeting, quick hovering to read effects, fast navigation of a dense inventory. The desktop context suits the game’s talky, methodical rhythm; this is a sit-down experience, not a quick-session filler. Steam Cloud saves and the platform’s achievement scaffolding fit the metaprogression naturally. Anyone who runs a second monitor with a wiki open for the gnarlier set bonuses will feel right at home. A controller would fight the interface’s density; the mouse is the tool this design was built around.

Knock on the Coffin Lid is a deckbuilder that treats its story as a mechanic rather than a decoration, and its gear system as a design pillar rather than a stat sheet. RedBoon aimed for something harder than a Spire clone and landed closer than most would. The gear-into-cards design is smart. The memory-driven narrative is clever. The art has personality. That it stumbles on difficulty tuning, UI clarity, and grind doesn’t erase the ambition—it just means you’ll wrestle with the game as often as you enjoy it.

If you want a tight, elegant roguelike you can master in a weekend, this isn’t it. If you want a sprawling, atmospheric, systems-rich adventure that respects your intelligence and demands your patience—and you’re willing to meet it on those terms—pry the lid open. There’s something alive down here.