Joker Miner is a new slot from Endorphina, released on 29 October 2026. It mixes classic fruit and 7s symbols with a gem mine in a retro American cowboy setting, and packs five separate bonus games into a 5-reel, 4-row, 25-line layout. All figures below come from Endorphina’s game page and release article.
What the game is
Endorphina’s Lady Joker is the Wild here and, in Endorphina’s words, she is on your side. The soundtrack is old-time country and western, and the symbols are arcade-style fruits and 7s. Endorphina’s Head of Product, Andrey Oleshko, describes it as a mining-themed slot with five bonus features, including one where you dig deeper underground for rewards.
How it plays
Joker Miner pays on 25 fixed lines across a 5x4 grid. The golden 7 is the top symbol, paying 100x the base bet for five of a kind. The Lady Joker Wild appears on reels 2 to 5 and substitutes for all symbols except Tokens.
Above the reels sit five Minecarts: orange, purple, green, blue and red. Coloured Coins (Token symbols) land in the base game, and when a Coin lands on a cart of its colour, it may randomly trigger that cart’s bonus:
- Orange: Boost (Hold and Win). A prize equal to 1x to 5x, 7x or 10x the total bet is added to every regular prize on Bonus symbols. Collecting 20 special symbols awards the ULTRA Jackpot of 1,000x.
- Purple: Collect (Hold and Win). Collector symbols gather all regular prizes on the Bonus symbols already on the reels.
- Green: Pick’Em. Pick from 20 Gemstones. Three Grand Gems award 2,500x, and regular prizes run from 2x to 50x.
- Blue: Jackpot. Pick from 20 Minecarts hiding ULTRA (500x), MAX (200x), MID (50x), MIN (20x) or regular prizes of 5x to 15x.
- Red: Miner Games. 20 free games at the same bet, with reel 3 filled with Wilds on every spin. The Wild also appears stacked here.
In both Hold and Win games, Bonus symbols carry MAX (100x), MID (50x) and MIN (20x) jackpots or regular prizes from 1x to 18x the total bet. Endorphina’s classic Risk Game is also included: beat the dealer’s card to double your winnings, with up to 10 attempts in total.
The numbers
| Detail | Figure |
|---|---|
| Release date | 29 October 2026 |
| RTP | 96.05% |
| Volatility | High |
| Max win | 2,500x |
| Layout | 5x4, 25 fixed lines |
| Bet range (Endorphina figure) | €0.25 to €87.50 |
A 2,500x cap is modest next to many recent high volatility releases, so most of the game’s value sits in how often the five bonuses land rather than in one huge hit.
Who it suits
Joker Miner suits players who like classic fruit-style symbols but want more going on than a plain line game. Five different bonuses keep sessions varied. The Risk Game is optional, and it can wipe out a win as easily as double it, so use it with care.
Where to play
Endorphina is in the provider lists of many casinos we have reviewed, including Winz.io, 24Casino, Tsars, Casoo and Playfina. Search the lobby for the game before you deposit, since new titles do not always appear everywhere on day one.
Check the RTP before you play
The 96.05% figure is the one Endorphina publishes. Casinos can run other settings, so open the game’s info screen and read the RTP there. Our RTP and volatility guide explains what these numbers mean over a session.
For more October and November releases, see our new slots page.
Frequently asked questions
When was Joker Miner released?
Endorphina published its release article for Joker Miner on 29 October 2026.
What is the RTP of Joker Miner?
Endorphina's game page lists an RTP of 96.05%. Your casino may run a different setting, so check the game's info screen.
What is the max win in Joker Miner?
Endorphina lists a maximum win of 2,500x the total bet and rates the volatility as high.
How are the bonus games triggered?
Five coloured Minecarts sit above the reels. When a Coin of the same colour lands on a Minecart, it may randomly trigger that cart's bonus game: Boost, Collect, Pick'Em, Jackpot or Miner Games.