RogueJack21

A blackjack deckbuilder where suits deal damage or restore health

Zandbox Studio · Released Jan 22, 2026

Reviews: Mostly Positive; 70% of 201
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 3 months ago; Jul 27, 2026
Minimum PC: OpenGL 2.1 compatible; 4 GB RAM · 0.5 GB disk; Full requirements

What is RogueJack21?

In this single-player roguelike, you play blackjack battles against dealers with rigged decks across procedurally generated casinos. You choose when to hit, stand, or double down, buy cards and trinkets with chips, and upgrade cards while working toward each map's pit boss.

For you if...

+you enjoy turn-based decisions using familiar blackjack rules
+you like experimenting with card and trinket combinations

Not for you if...

−you want multiplayer card games against other people
−you prefer continuous progression instead of starting new runs

What players say

70% of 201 reviews are positive

Players praise the blackjack-based gameplay and visuals. Complaints center on repetitive runs, heavy reliance on luck, and suspicions that the art and music are AI-generated.

Screenshots and trailer

RogueJack21 system requirements

Minimum: OpenGL 2.1 compatible, 4 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run RogueJack21?

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Minimum

OS: Windows 7, 8, 10, 11 x64
Processor: Intel Core i3
Graphics: OpenGL 2.1 compatible graphics card, integrated graphics
Memory: 4 GB RAM
Storage: 500 MB available space

Does RogueJack21 have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does RogueJack21 run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, macOS, Linux
Achievements: 25
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, French, German, Japanese, Korean, Portuguese - Portugal, Russian, Simplified Chinese, Traditional Chinese, Polish.

Does RogueJack21 use AI-generated content?

Yes. The developers disclose AI-generated content on the game's Steam page:

100% of the in-game art was made by artists, including marketing material. However, some of the in-game text was created with the assistance of AI tools.

The statement mentions: ArtText & translationsStore page & marketing

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam