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SYSTEM 21

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SYSTEM 21 screenshot 1

SYSTEM 21

System Forge Studio · Published by System Forge Studio · Official site ↗

Last updated 28 Sept 2026

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.

Free to PlayComing SoonDJCTQ l

Free

View on Steam

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Indie, Strategy · More free games

About this game

YOU ARE THE HOUSE. CHEAT THE ARRAY.

You are DEALER.exe, a rogue subroutine inside SYSTEM 21, the casino's proprietary operating system. Your job is to engineer every outcome on the floor: read the upcoming cards in the visible draw queue, deal them in order, and when the math favors the patrons, rewrite reality before anyone notices.

  • The shoe is an open buffer. Upcoming cards sit in a sequential queue, newest on top. Read ahead and plan accordingly.

  • Illegal exploits. During the dealer draw, DELETE burns the next card or INVERT swaps the top two. Every intervention raises global suspicion.

  • Six patron archetypes. Tourists, Regulars, Drunks, By-the-Book, Card Counters, and Whales, each with a wallet, a hype meter, and different betting behavior. Fleece them too fast and they disconnect. Let them win just enough, then extract when wallets are full.

  • Audit evasion. Exploits, hole-card peeks, and reshuffles feed the detection meter. Suspicion climbs in escalating bands. At 100%, SYS_ADMIN traces the signal and your run terminates.

  • Seven campaign cycles. Quotas climb, seats fill, spawn tables tighten. One persistent shoe grows from 4 decks to 8. Hit each cycle's extract target before drawdown maxes or the floor empties.

  • The Compiler shop. Between cycles, spend a slice of winning profit on twelve different plugins that elevate the gameplay to a new level.

  • Eleven Anomaly Challenge protocols. Unlocked after campaign victory. Single-deck sprints, whale-only floors, DELETE disabled, heat ladders, and others. From Easy to Insane difficulty.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 64-bit (version 1903 or later)
  • Processor: Intel Core i3-4000 / AMD FX-4300 or equivalent (dual-core, 2.0 GHz+)
  • Memory: 4 GB RAM
  • Graphics: Intel HD 4000 / AMD Radeon HD 7000 / NVIDIA GT 630 or equivalent
  • Network: Broadband Internet connection
  • Storage: 500 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10/11 64-bit (latest updates)
  • Processor: Intel Core i5-8400 / AMD Ryzen 5 2600 or better
  • Memory: 8 MB RAM
  • Network: Broadband Internet connection
  • Storage: 1 GB available space

Supported Languages

English, Portuguese - Portugal, French, Italian, Spanish - Spain, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America

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