Mining Factory Slot Review

Henry the Stingray is a seasoned pro struggling to adjust to the digital era. However, caught up in the Bitcoin craze, he converted one of his numerous factories into a mining farm. His charming robot assistant, Chain, assists by filling the Plasmatron to boost mining output.

Mining factory screen shot

Mining Factory is a video slot with 3×5 reels, 27 paylines, and high volatility, offering Expanding Wilds, Free Spins, and a cumulative Plasmatron Bonus.

Featuring cutting-edge visuals, Mining Factory boasts a responsive design built on HTML5, providing a comfortable gaming experience across a broad spectrum of devices.

Mining Factory Slot Bonus Features

Mining Factory offers generous bonus features to help you increase your winnings. Below are the details of these features:

Free Spin Scatter

The Free Spin Scatter symbol is a green mechanical beetle that appears on all reels during the base game. Landing three, four, or five of these symbols will award you with three, six, or twelve free spins, respectively. During free spins, the WILD symbol transforms into an EXPANDING WILD and covers all reels.

Energy Symbol

The Energy Symbol can appear on any reel and offers both coin prizes and energy boosts towards the Power [Free] Spin Jackpot. Collect 100 units of energy to trigger the Power [Free] Spin Jackpot, starting with five units and adding one more unit with each additional WILD.

Coin Exchange Bonus

The Coin Exchange Bonus is triggered when the ‘exchange symbol’ appears on the fifth reel. You can choose one of four currencies, each representing several coins ranging from 25 to 2500. Choose wisely as this bonus can lead to big wins.

Mining Factory Slot Paytable

In this game, the paying symbols embrace the world of technology and pay tribute to the increasing number of Bitcoin mining labs. The high-paying symbol depicts a bird as a nod to the Twitter logo. Landing five matching symbols will reward you with up to 600 credits.

The medium-paying symbols consist of lab components that represent Bitcoin, a computer screen, and plasma. Collecting five identical objects on the screen will earn you 300, 200, and 100 credits, respectively.

In addition to these symbols, the Mining Factory slot also features special symbols that can yield significant rewards for players. The Wild symbol can replace all objects except for the Scatter and Exchange symbols. The Energy symbol randomly offers players a Coin Win or energy for Power Spins.

Symbol 3 Symbols 4 Symbols 5 Symbols
A 25 50 250
K 20 40 200
Energy 10 20 40
Dash (Reverse E) 15 25 50
Dogecoin (D with a dash) 15 25 50
Litecoin (L with a dash) 15 25 50
Green Clover 25 50 100
Computer Screen 50 100 200
Orange Bitcoin 75 150 300
Penguin 200 300 600
Wild 200 300 600

How to Play Mining Factory Slot

In a state-of-the-art laboratory filled with high-speed computers, slot action takes place. As you begin the game, you’ll take your place in front of the main control screen where you’ll find the playing grid with Henry the Stingray overseeing the mining action across five reels and three rows. On the left side of the screen, a friendly robot is ready to fill up the Plasmatron, located nearby.

The control board contains multiple buttons that aid you in Bitcoin mining operations. The left side of the menu includes paylines, coin values, and bet price, while the right side displays your current balance.

This game features fixed 27 paylines and coin values ranging from 0.01 to 11.00. As a result, the minimum wager is €0.25 and the maximum is €275 per spin. To initiate the mining action, simply click the ‘Spin’ button. Additionally, Auto Play and Max buttons are available to assist you in managing your spins.

RTP and Volatility

If played continuously for a specific duration, this game is expected to offer an average return to the player of 96.40 coins per 100 wagered. However, due to the high volatility of this slot, players may need to exercise patience when seeking wins.


TrueLabs proudly proclaims its ability to “make iGaming awesome,” and it’s hard to disagree after experiencing Mining Factory. This unique and original game is particularly attractive to players who are familiar with the Bitcoin craze. While the game’s high variance may require some patience, it offers plenty of bonuses to keep players engaged and entertained. Overall, Mining Factory is a quirky and enjoyable game that lives up to TrueLabs’ reputation for excellence in iGaming.

Slot Stats

Software TrueLab
Release Date 15th December 2018
Reels 8
Rows 5
Paylines 27
RTP 96.40%