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SYSTEM 21

Manipulate a blackjack game from the inside as a dealer subroutine in this minimalist roguelike deckbuilder. Read the visible card's queue, execute illegal code exploits to alter the upcoming cards, and fleece high-rolling patrons before the system anti-cheat detects your anomaly. Players gave SYSTEM 21 a 0% positive score. Top tags include Roguelite, Roguelike Deckbuilder, Puzzle, Card Game, Roguelike, Strategy, 2D, Cyberpunk, Choices Matter, and Deckbuilding.

Manipulate a blackjack game from the inside as a dealer subroutine in this minimalist roguelike deckbuilder.

Coming soon: 02 Dec 2026

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Manipulate a blackjack game from the inside as a dealer subroutine in this minimalist roguelike deckbuilder. Read the visible card's queue, execute illegal code exploits to alter the upcoming cards, and fleece high-rolling patrons before the system anti-cheat detects your anomaly.

Developed by System Forge Studio · Published by System Forge Studio

SYSTEM 21 screenshot 1SYSTEM 21 screenshot 2SYSTEM 21 screenshot 3SYSTEM 21 screenshot 4SYSTEM 21 screenshot 5SYSTEM 21 screenshot 6SYSTEM 21 screenshot 7

SYSTEM 21 has no reviews yet!

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Back of the Box

Platforms Windows, macOS
Age ratings
  • ClassInd (Brazil) L
  • IGRS (Indonesia) 3
  • Steam (Germany) 0
Controller required No
Demo View demo on Steam
DLC / extras 1 listed on Steam
Website Official website

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Is SYSTEM 21 free?▾
SYSTEM 21 is free to play. Get it on Steam here.
Who made SYSTEM 21, and when did it come out?▾
It was developed by System Forge Studio and published by System Forge Studio, released on December 2, 2026.
What should I play if I like SYSTEM 21?▾
Our closest match is Fhtagn Simulator, and you can see more games like SYSTEM 21 here.