Felt Gaming

Blackjack 21+3

Classic blackjack paired with an optional poker side bet

Only 0.4% of slots feature 99% Rtp.

SlotRanker Score
82
/ 99
82
05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

RTP
99.63%
return to player
Volatility
variance
Max win
top multiplier
Min bet
$0.10
per spin
Reels
Unknown lines
Player rating
4.2 ★
1 votes
DEMO Play free, no signup
Felt Gaming
Blackjack 21+3
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4.2 / 5
1 ratings
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User ratings are shown separately from the Slot Score unless stated otherwise.

Why this score

High confidence (100%)

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Slot score profile across 5 weighted categoriesPayouts & RTP10/10RTP 99.63% → 10.0/10Volatilityn/anot applicableWin Potentialn/anot applicableFeaturesn/anot applicableGame Mechanicsn/anot applicable
Payouts & RTP10/10
RTP 99.63% → 10.0/10
Volatilityn/a
not applicable
Win Potentialn/a
not applicable
Featuresn/a
not applicable
Game Mechanicsn/a
not applicable
Context signals (tie-breakers)
not applicable
0.1–500 (×5000) → 8.0/10
provider avg 7.4 → 7.4/10
synthetic proxy → 3.3/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 82 — Blackjack 21+3 by Felt Gaming

https://slotranker.com/felt-gaming/blackjack-213#score
How to cite

Slot Summary

Blackjack 21+3 combines a standard hand against the dealer with an optional poker-derived side bet. That wager reads the player’s first two cards together with the dealer’s face-up card as a three-card poker hand, adding a separate result without replacing the underlying blackjack game. Felt Gaming places the title within its broader collection of classic table games and named side bets, using land-based casino references, modern interfaces, and support for either single-hand or multi-hand play.
MechanicsThree opening cards determine the 21+3 result
Spec sheet
Blackjack 21+3 at a glance.
Identity
Slot nameBlackjack 21+3
Released5/25/2018
Math
SlotRanker Score82
RTP99.63%
Max win
Bet range$0.10 – $500.00
Player rating4.2 / 5 · 1 votes
Format
Reels
PaylinesUnknown
Layout
Features
Themes

True Cost to Play

Expected average based on this slot's 99.63% RTP — individual sessions vary with volatility.

Cost per hour$0.15
Cost per session$0.15

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

Bankroll survival simulator

How long could a bankroll last on Blackjack 21+3? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Volatility tier: Mediumassumed — not published for this slot

Running simulation…
How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (99.63%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Blackjack 21+3 with other games

Blackjack 21+3
Blackjack 21+3
Score 82This game
Black JackBlack Jack
Score 85
European Blackjack MHEuropean Blackjack MH
Score 84
Premier Blackjack with Lucky LuckyPremier Blackjack with Lucky Lucky
Score 84
Back BlackjackBack Blackjack
Score 82
Identity
Studio
Released5/25/201811/28/20172/1/201511/25/20217/28/2021
Math
RTP99.63%99.9%99.37%99.57%97.14%
VolatilityHigh volatilityLow volatilityLow volatility
Max win24,125×264×
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