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About This Game

The fight history never let happen

Who wins — Caesar or Genghis Khan? Spartacus or Musashi? Yi Sun-sin or Alexander?
Everyone has had this argument. It never had an answer, because they lived centuries apart.

PARAGON 21 exists to settle it. The strongest warriors of East and West, pulled out of their own eras and matched one on one. Even the lineup is still being argued over — the names that come up most will make the first roster.

The weapon is 21

Both sides draw cards toward 21. Make it exactly, and your warrior's technique fires.

Here's the core of it: which technique fires depends on how many cards you used. A two-card 21 — a blackjack — is the heaviest strike in the game. Every warrior carries four techniques, one per hand size. For Yi Sun-sin, two cards is Myeongnyang; five is Hansan. Same 21, entirely different weight.

Two cards they can't see

Two face-down cards sit in front of you at all times. Play one to the table, pull one back, rebuild the whole hand — none of it costs a turn.

Your opponent only knows how many you're hiding. You can stop at 19 and look finished — while a 2 waits face-down, and only you know it's there. Every mind game in this duel runs through those two cards.

Stop here, or go again

The moment a technique lands, you can push on. The target becomes 31, then 41. The multiplier compounds with every step — one full combo can end the duel outright.

Fail, though, and everything you stacked comes back down on you. Bank the damage and stop, or risk it all on one more card. That choice comes around every single round.

One warrior against a million

The screen isn't a card table. It's a 3D battlefield. The enemy army stands in formation in front of your warrior, every soldier a card — and when your technique fires, hundreds of them are swept away at once.

Your first opponent is a single soldier. Then ten. A hundred. Ten thousand. A million. Cut the army down to the last man and the formation splits open — the enemy general walks out to meet you himself. One on one.

The gauntlet

There is no ending. Keep winning, and they come back stronger. Beat a general and you take his famed blade; temper it, and get ready for whoever's next.

Then there's the Nameless — a ninth character who starts with no technique and no sword, and claims the weapon and technique of everyone he defeats.

No gods, no magic

Everyone here actually lived. None of these fights ever happened. Find out for yourself who history's strongest really was.

This is a solo project, built in the open. From the roster to the balance, community feedback shapes the game — the community hub is always open, and I read it.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some visual assets in this game — including character portraits, illustrations, and marketing images — were created with the assistance of generative AI tools. All AI-generated material was reviewed, edited, and finalized by the developer. No AI content is generated during gameplay.