4 of a King Slot Review
4 of a King is a 5×3 Endorphina slot with 10 paylines, Wild expansion and free spins. This review explains how the classic casino-card theme, medium risk level and simple feature set shape the game.
It focuses on the supplied 96% row, checks where current official data differs, and shows what the 10-line layout, wild spread and gamble option mean for session pacing.
Key Information
| Provider | Endorphina |
| Release date | 15 Nov 2014 |
| RTP | 96.00% |
| Volatility | Medium |
| Max win | x1000 |
| Reels | 5×3 |
| Paylines/ways | 10 |
| Min/max bet | 0.01-5.00 |
| Theme | Casino, Cards, Roulette |
| Bonus buy | Not specified |
Endorphina lists a 96.03% build with Medium-High volatility.
Public sources also vary on release timing, so the supplied row stays primary.
How 4 of a King works
4 of a King uses a 5×3 reel set with 10 fixed paylines, so every spin is easy to read and wins stay tied to simple left-to-right line matches. The base game leans on familiar card and casino symbols rather than stacked modifiers or side meters.
The chip wild can spread to adjacent spots, which is the main way the slot upgrades ordinary line hits into stronger returns. In the supplied build, free spins add the main bonus push, while the gamble feature can raise a collected win or remove it in one guess.
Main features
- Expanding wilds can spread sideways and turn near misses into full line wins.
- A simple 10-line layout keeps symbol reading clear on every base-game spin.
- The supplied build lists free spins as the main bonus event in the review.
- The gamble feature can double a win, but it can also erase it at once.
Who will enjoy it
- Classic slot fans who prefer fixed paylines and a familiar casino-card theme.
- Players who want medium session swings without a huge ruleset to learn.
- Users who like wild-led base play more than long layered bonus systems.
- Demo-first players comparing old-school layouts before risking real funds.
Medium play can still hide dry runs when wild spread does not connect.
Set limits early and read Responsible Gambling before using the gamble step.
Bonus rhythm and payout profile
Payouts are driven more by line connections and wild expansion than by chained bonus layers. That keeps the slot readable, but it also means ordinary spins can feel flat until the wild spread catches multiple paylines at once.
Using the supplied data, free spins are the headline bonus and the gamble option adds a second risk step after eligible wins. Because Endorphina’s current page highlights Wild and Risk Game first, always treat the paytable in your casino version as the final rules screen.
Similar slots worth checking
| Slot | RTP | Volatility | Why it is similar | Best for |
|---|---|---|---|---|
| Lucky Respin | 97.15% | Medium | 10-line classic core | Players wanting respins |
| Lucky Joker Xmas | 97.12% | Medium | Fixed lines and gamble | Fans of simple extras |
This is a cleaner pick for short classic sessions than for bonus hunting.
See more in Slots or review our methodology for similar classics.
FAQ
The supplied row uses 96.00%, while Endorphina currently lists 96.03% for its live game page. Check the paytable of the version you open if exact RTP matters to you.
The supplied build lists free spins, but Endorphina’s current page highlights Wild and Risk Game first. Use the in-game rules as the final source for the version you play.
The chip symbol acts as the Wild and can spread to adjacent positions. That is the clearest published mechanic behind the slot’s stronger line wins.
The supplied row classifies it as Medium, while Endorphina currently labels the live page Medium-High. Expect moderate swings and confirm the paytable if you need the exact build.
Game Screenshots
Top real money casinos
Bizzo Casino is a Curacao-licensed online casino launched in 2021 with 5,000+ games, 20+ account currencies, app support, weekly promos, and withdrawal limits up to €/$4,000 per day. Payments and bonus terms can vary by country and promo version.
Thunderpick is a crypto-first casino, sportsbook, and esports betting platform with one shared account, many fiat display currencies, gift-card deposits for some fiat users, separate Rewards and VIP systems, and a large multi-provider game library.
The Slotz (est. 2025) offers 10,000+ games, daily cashback up to 30% with 1x wagering, and a four-deposit welcome package up to €2,500 + 375 FS.
