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. 

                             
How combat works:
Draw cards one at a time, each one raises your total

Stand at any time to lock in your hand

Hit 21 and deal double damage

Go over and bust. Your cards are halved and your hand shrinks

After standing, drag each card onto an enemy to attack or onto yourself to block

Every card in your hand is both a weapon and a shield. You decide how to spend it

The closer you push to 21, the stronger your hand. But one card too many and the turn collapses.

Cards & Badges
Every card in your deck is a standard playing card, but badges change what they do. 

130+ badges to discover

Badges are permanent modifiers attached to individual cards

Each card can carry up to 2 badges at once

Badges trigger on specific moments: when you draw, stand, hit 21, bust, attack, or defend

Stack two badges on the same card to create powerful combos

Build around synergies. A card with Venom and Cleave weakens every enemy it hits

Your deck starts simple. By the end of a run, every card should be doing something.

Relics
Passive items collected across your run

80+ Relics to discover 

Some reward clean play

Some reward risk

Others bend the rules 

                    
Enemies
Enemies telegraph their next move. Some have dynamic intents that adapt to your stand total or if you bust

40+ enemies to battle. Casino objects brought to life, cursed staff and more

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

Elites hit harder and carry rarer traits

Bosses shift through phases, summon reinforcements, and force you to adapt mid fight

Additional Features
3 playable characters, each with a unique ability and deckbuilding identity

A procedurally generated map with battles, elite fights, shops, events, and recovery bars

A shop to buy badges, relics, and new cards, or discard what you don't need 

Card upgrades between battles from The Admin, The casino's mysterious host

Events with choices, risks, and rewards. 40+ events to discover

Three stages: Temptation, Greed, and Reckoning. Each with its own enemies, traits, and tone