Solitaire Zero 21 - Steam Charts & Historical Stats
Card game fit for all the family! The aim of the game is to clear the playing area of all cards whilst keeping your deck score between 0 and 21. Explore historical player activity and pricing for Solitaire Zero 21. Player-count data was last observed Apr 22, 2026.
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Buy Verdict
Excellent deal! This matches the historical low price with 80% off.
Value Score
Price-to-player ratio ranks in the 100th percentile.
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Price History
System Requirements
- OS *: Windows 7
- Processor: Intel Core i5-2300 | AMD FX-6350
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 650 Ti, 2 GB | AMD Radeon R7 360, 2 GB
- DirectX: Version 11
- Storage: 500 MB available space
- OS *: Windows 8 or later
- Processor: Intel i7 2.60GHz or equivalent
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 780, 3 GB | AMD Radeon R9 290X, 4 GB
- DirectX: Version 12
- Storage: 500 MB available space
Additional Information
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About This Game
Card game fit for all the family! The aim of the game is to clear the playing area of all cards whilst keeping your deck score between 0 and 21. If you hit 0 or below, or hit 21 or above, it is game over.
Detailed Description
Card game fit for all the family! The aim of the game is to clear the playing area of all cards whilst keeping your deck score between 0 and 21. If you hit 0 or below, or hit 21 or above, it is game over.
Gameplay
The player selects one of the top cards showing an addition or subtraction sum. This adds that card to their pile, applying the maths operation to their current score. The objective of the game is to stay within the range 1 - 20. If the sum falls to zero or hits 21, the game is over.
Only the top items of each pile are visible, so the player needs to operate some strategic thinking in order to ensure they don’t “go bust”.
Additional “wild” cards sometimes appear which has the ability for the player to alter their current score to help them (e.g. ‘MIN’ reduces their score to 1, ‘MAX’ increases their score to 20).
When a player clears all the cards successfully without hitting 0 or 21 they win some diamonds.
If a player fails, they can use their diamonds to try again where they left off.
Player Control
The game is controlled using either the Mouse or a DualSense / Xbox controller, to select the available cards with the thumb sticks to move a highlight around the screen, using A/X and B/O to select/deselect items as needed.
Progression & Challenge
The player works their way through the campaign, starting with Level 1. The difficulty increases as they progress.
A player can also collect the diamonds to customise the pack theme.
The game also features a Daily Challenge. In this game, all cards are laid on the table, with the player briefly able to see what they’re playing with. Then the cards turn over, and the player must select them one by one.
Achievements
The game features Steam Achievements as the user progresses through the game.
These will be awarded for unlocking later stages of the game and completing certain levels within a time limit.
Leaderboards
The game also includes leaderboards to allow players to rank amongst their friends and the world. Leaderboards are progression and time based.