Shadow Summoner Elementals is an online slot game from Fantasma Games, which features an immersive battle against demonic imps. Here are some of the key mechanics and features of the game:

- It features four levels of gameplay, each more lucrative than the other. The highest level offers a bonus minigame with the potential for massive payouts.

- The game uses Pay Anywhere mechanics, which means symbols pay for 8 or more in view anywhere on the 6-reel and 5-row playing grid. They don't have to follow a template or direction.

- There are avalanches and win multipliers in both the base game and free spins.

- There's a win table on the left-hand side that traces your consecutive wins. Symbols involved in a payout disappear, causing avalanches and new ones descend from above to try and create new winning formations.

- The Elementals Meter, positioned just next and above the win table, tracks your current progress through the game's four levels. Each of these levels adds a new special feature to the game.

- High Pay symbols include four imps, while the Low Pay symbols are four gem-encrusted card suits.

- Reel modifiers include Wild symbols, special win multipliers, and massive transformations.

- Whenever the Elementals Meter reaches 200, it levels up and unlocks a special feature by adding its unique symbol to the grid.

- Special features can be triggered on any spin and may include the Spread Feature, Explosion Feature, Respin feature, and Upgrade Feature.

- The Scatter Boost option, available when Level 4 is unlocked during the base game, increases the total bet by 50% and triples the chance of triggering free spins.

- You can also buy bonus spins at the cost of 100x the bet and immediately activate 4 Feature Spins.

- The game is powered by the latest HTML5 technology, which makes it compatible with any mobile device.

- The game's RTP varies from 96.31% to 96.64% depending on the feature in play, volatility is medium, and the Hit Frequency rate is 26.93%.

- The max win is 5,610x the bet or up to a staggering €673,200.

Shadow Summoner Elementals is a stunningly designed game with advanced mechanics and fascinating features that cater to the player's desire for an exciting and potentially lucrative gaming experience.