Screenshots
About this game
Blackjack 21 is a solo card game that simulates the classic casino experience. Players aim to reach a hand value of 21 without exceeding it, competing against the dealer. Its straightforward mechanics and short session times make it ideal for casual play and practicing card game skills.
What players say
Themes from 200 recent Google Play reviews, analysed 28 Aug 2026
Praised
Fun & addictive72
Complained about
Too many ads12
Why we tagged it this way
What each behavioural tag is based on
- Short sessionsRuns are self-contained, so stopping early costs you nothing.
- InterruptiblePut it down mid-session and pick it up cold.
- One-handedPlayable with a thumb, in portrait.
- Plays offlineNo connection needed once installed.
- No energy timersNothing caps how long you can play.
- Sound optionalNo audio cue carries information — fine on mute.
- Low focusPlayable while half-distracted.
Commute
Short, interruptible sessions
Flight
Plays fully offline
In bed
Works muted, one-handed
With friends
Solo only, no multiplayer
What it costs
| Download | Free |
| In-app purchases | $2.99 |
| Ads | Yes |
| Energy timers | None |
From the Google Play listing.
Tags
ReplayabilityHigh
StoryNo Story
SocialSolo
DifficultyCasual
GrindLow
Brain PowerLight
Story depthNone
PriceAd-Supported
PauseableHigh
VibeRelaxing
OrientationPortrait
RatingTeen
DeviceStandard
Has ending?Endless
MultiplayerSolo-Only
GenreCasinoCasino Cards
✈️ Offline play👍 One-handed🔇 Mute-friendly⚡ No energy timers👶 Parent-friendly
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