House of 21 screenshot 1
House of 21 Announcement Trailer
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Games Like House of 21

Fight cursed enemies in a blackjack roguelike deckbuilder set inside a phantom casino purgatory. Push your luck, upgrade your cards with unique badges, collect relics, and uncover strange events as you battle your way out of the House. If the House lets you…

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About House of 21

House of 21 is a roguelike deckbuilder where blackjack is your weapon.

You're trapped in a casino purgatory between life and death. Build your deck, push your luck and take on the House. 

House of 21 video 1

How combat works:

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Draw cards one at a time, each one raises your total
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Stand at any time to lock in your hand
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Hit 21 and deal double damage
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Go over and bust. Your cards are halved and your hand shrinks
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After standing, drag each card onto an enemy to attack or onto yourself to block
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Every card in your hand is both a weapon and a shield. You decide how to spend it
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The closer you push to 21, the stronger your hand. But one card too many and the turn collapses.
House of 21 video 2

Cards & Badges

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Every card in your deck is a standard playing card, but badges change what they do.
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130+ badges to discover
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Badges are permanent modifiers attached to individual cards
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Each card can carry up to 2 badges at once
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Badges trigger on specific moments: when you draw, stand, hit 21, bust, attack, or defend
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Stack two badges on the same card to create powerful combos
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Build around synergies. A card with Venom and Cleave weakens every enemy it hits
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Your deck starts simple. By the end of a run, every card should be doing something.

Relics

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Passive items collected across your run
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80+ Relics to discover
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Some reward clean play
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Some reward risk
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Others bend the rules
House of 21 video 3

Enemies

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Enemies telegraph their next move. Some have dynamic intents that adapt to your stand total or if you bust
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40+ enemies to battle. Casino objects brought to life, cursed staff and more
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Traits are permanent passive rules unique to each enemy: Nimble halves damage from high cards, Bulwark absorbs the first hit each turn, Spiky punishes low cards
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Elites hit harder and carry rarer traits
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Bosses shift through phases, summon reinforcements, and force you to adapt mid fight

Additional Features

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3 playable characters, each with a unique ability and deckbuilding identity
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A procedurally generated map with battles, elite fights, shops, events, and recovery bars
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A shop to buy badges, relics, and new cards, or discard what you don't need
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Card upgrades between battles from The Admin, The casino's mysterious host
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Events with choices, risks, and rewards. 40+ events to discover
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Three stages: Temptation, Greed, and Reckoning. Each with its own enemies, traits, and tone

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

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