BlackJack Math

A card-swapping puzzle game where every equation must equal 21

Heavy Sheep · Released Aug 20, 2020

Reviews: Very Positive; 85% of 75
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 6 years ago; Oct 22, 2020
Minimum PC: 2 GB RAM · 0.1 GB disk; Full requirements

What is BlackJack Math?

BlackJack Math is a single-player math puzzle game with 50 handcrafted levels. You swap numbered cards to rearrange equations until their results equal 21.

For you if...

+you like minimalist visuals and relaxing background music

Not for you if...

−you prefer puzzles that do not involve arithmetic

What players say

85% of 75 reviews are positive

Players praise the puzzle design and gradually increasing difficulty. A recurring complaint is that levels complete automatically when cards reach the correct arrangement, allowing accidental solutions before players finish calculating.

Screenshots and trailer

BlackJack Math system requirements

Minimum: 2 GB RAM, 0.1 GB of disk space.

As published by the developer.

Can my PC run BlackJack Math?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows 7
Processor: Dual Core 2Ghz
Memory: 2 GB RAM
Storage: 60 MB available space
DirectX: Version 11

Does BlackJack Math have co-op or multiplayer?

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

Single-player

Does BlackJack Math run on Steam Deck?

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

Sometimes shows mouse, keyboard or non-Deck controller icons
All functionality is accessible with the default controller configuration
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 5
Steam features: Family Sharing
Languages: Text only: English.

Does BlackJack Math use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

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