What is 21 Blitz?
21 Blitz is a free card & board game with blackjack elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. 21 Blitz is a strategic card game which shares some of the rules of Black Jack.
How to play 21 Blitz
- Press "Play now" on the game screen. 21 Blitz loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Combine the cards in each slot to 21.
- Get more points by making 21 with just 2 cards (Black Jack) or get 21 Blitz by combining 5 cards to 21!
- The sum of each slot is not allowed to exceed 21.
- If all slots are full and you cannot place the drawn card anywhere you then have to discard this card or use the joker instead.
- You get one Joker per deck to play.
- The joker combines any slot to 21!
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Card & Board |
|---|---|
| Tags | blackjack |
| Controls | Shown in the game |
| Screen | Landscape (800 × 600) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameDistribution |
| Added to Gameziko | 30 September 2026 |
Description from the developer
21 Blitz is a strategic card game which shares some of the rules of Black Jack. But unlike in the slow paced Black Jack the goal is to add up the cards to 21 as quickly as possible in the 4 available slots whilst having to complete 2 decks of cards. Think carefully about the cards you use and the cards you trash, before you know it you will find yourself running out of options. It seems like a simple task but can you think ahead and remember which cards have already been played?
21 Blitz: frequently asked questions
Is 21 Blitz free to play?
Yes. 21 Blitz is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in 21 Blitz?
The developer's instructions for 21 Blitz say: "Combine the cards in each slot to 21. Get more points by making 21 with just 2 cards (Black Jack) or get 21 Blitz by combining 5 cards to 21! The sum of each slot is not allowed to exceed 21. If all slots are full and you cannot place the drawn card anywhere you then have to discard this card or…"
Can I play 21 Blitz on a phone or tablet?
21 Blitz is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to 21 Blitz?
If you like 21 Blitz, try BLACKJACK 21, 21 Solitaire and Las Vegas Blackjack. They are card & board games with similar themes, and you can find more in the Card & Board category on Gameziko.
Related guides
- 6 Best Free Card and Board Games to Play Online: Six free card and board games to play online with no download, from chess and checkers to Spider Solitaire, mahjong, dominoes and Reversi.
- Klondike Solitaire Strategy: Tips to Win More Games: Klondike solitaire strategy to win more often: which face-down cards to free first, when to play to the foundations, Kings, empty columns and Draw 3.
Good to know
21 Blitz is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.