- Archaeology-meets-sci-fi mining theme
- Five core features that change with each spin
- Max win of 5,000x the wager
Doom’s Digging Machine is an online slot game that drops the player into a gigantic drilling rig run by a mad scientist. As with other cascading slots online, symbols tumble down (through subterranean rock) onto five reels with six rows, with payouts available anywhere on the reels if the player lands enough symbols. Five features can also affect the player’s chances of winning — if they’re lucky enough to trigger any of these gameplay mechanics. Players who want to learn more about this game of chance can dig deeper into this slot game review.
Doom’s Digging Machine Game Highlights
Here’s a quick look at some of the key elements of this online slot game’s features:
- Pays anywhere mechanic: Players must land eight or more matching symbols to trigger a win.
- Cascading wins: Winning symbols disappear and are replaced with new symbols, potentially triggering additional wins.
- Two mystery artefacts: Mystery artefacts appear with stacking global multipliers that can add up to 100x.
Doom’s Digging Machine Slot Quick Facts and Features
| Software Provider | Octoplay |
| RTP | 95.7%* |
| Volatility | Low |
| Jackpot Type | N/A |
| Paylines | Anywhere Pays |
| Reels | 5 |
| Max Wager | $100 |
| Max Win | 5,000x |
* Note that the return to player (RTP) rate for this slot may differ from one jurisdiction to another.
How Does the Doom’s Digging Machine Slot Work?
Before players wager on online slot machines for real money, it’s important to understand how slot machines work. Players who want to know more about Doom’s Digging Machine can open the menu in-game to learn more about this online slot. When the menu opens, they can select the Help tab to find out more about the game’s symbols, features, and game mechanics.
New or experienced players should note that payouts in this game of chance work slightly differently. Slots usually require players to form specific combinations of symbols on paylines in order to receive a payout, but in Doom’s Digging Machine, all players need to do is land eight or more of the same symbol anywhere on the reels. After each win, the Cascade feature (more about this in the “Features” section, below) removes the winning icons and causes new symbols to fall, giving the player extra chances to land payouts from a single win.
To place a wager, players can select “Stake” and then choose from a list of betting options between $0.10 and $100, which is great for players using slot budget management tips. Once the player’s wager is decided, all they need to do is spin the reels.
Doom’s Digging Machine Game Features
There are many different types of online slots to play, each with different types of features. Doom’s Digging Machine has five features that can activate on each spin.
Doom’s Digging Machine Cascade Feature
As with similar tumbling online slots, every win triggers a cascade. When players land a winning combination, the winning symbols explode and new symbols tumble into place. This can potentially trigger another win, which in turn triggers the cascade feature again. New wins can chain together until no new matches land.
Doom’s Digging Machine Mystery Artefact Feature
Green 2×2 or yellow 3×3 artefacts can appear on the reels. These mystery artefacts are filled with a single symbol and offer a multiplier worth 3x and 5x, respectively, that boosts all wins during that spin. When multiple artefacts land, their multipliers are added together but are capped at a maximum of 100x.
Doom’s Digging Machine Extra Spins Feature
When a player lands three or more mad scientist scatters, they receive 10 extra spins, plus five more spins for each additional scatter. Although the initial extra-spins reward caps out at a maximum of 30 extra spins, players can receive up to 10 extra spins and a global multiplier by landing scatter symbols while this feature is active. If the player triggers the max payout during this feature, it automatically comes to an end and the player is returned to the base game.
Doom’s Digging Machine Double Chance Feature
The Double Chance feature doubles the chance of triggering extra spins. The RTP (return to player) is also increased slightly to a theoretical value of 95.81%.
Doom’s Digging Machine Buy Feature
Players who want to play the Extra Spins feature immediately, without waiting for the game to randomly trigger it, can do so using the Buy feature. It costs 150x the player’s wager to trigger the extra spins feature.
Doom’s Digging Machine Slot Bonuses and Jackpots
Although there are no bonus or jackpot payouts in Doom’s Digging Machine, the game can pay up to 5,000x the player’s wager under specific conditions.
Doom’s Digging Machine Slot Graphics and Design
Doom’s Digging Machine has a bold, cartoon-style aesthetic that sets the scene for this light-hearted mining-themed online slot. The five extra-tall reels sit inside a teal panel with a metallic border, and symbols lean into the mining theme with gemstones and other strange objects that could be found buried in the earth. The backdrop is a dig site littered with rubble and junk. A giant drill-like machine has broken through the surface and is ready to start digging deeper into the ground.
The game begins with ambient noise that players would expect on a construction site, but as soon as the reels start spinning, an electro-style soundtrack starts to play. Sound effects like clinking coins, whirring drills, and slamming rocks add to the overall feel of this game’s humorous mining setting.
Doom’s Digging Machine Slot Symbols
There are three categories of paying symbols in Doom’s Digging Machine.
The high-value symbols include a yellow dinosaur skull with a gem in its mouth, a pink mammoth skull with a gem between its tusks, and a human skull with a gem in its eye socket. These symbols pay a max of 50x, 25x, and 15x, respectively.
The medium-value symbols are a skeleton hand-holding a gem, a yellow gem embedded in an octagon-shaped rock, and a dark-red gem embedded in a pentagon-shaped rock. These symbols pay a maximum of 12x, 10x, and 8x, respectively.
The low-value symbols are a green gem embedded in a heart-shaped rock, a blue gem embedded in a triangle-shaped rock, and a purple gem embedded in a diamond-shaped rock. The max rewards for these symbols are 5x, 4x, and 2x, respectively.
The game also has three special symbols. The first is a robotic mad scientist about to push a red button scatter symbol. The second and third special symbols are two square rocks of different sizes filled with gems and a 3x or 5x multiplier on them. These are the mystery artefact symbols
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