Summon Slot Demo by Phantom Interactive

Summon by Phantom Interactive Slot Overview

Summon by Phantom Interactive wraps a dark gothic fantasy setting around stone temples, demonic faces and candlelit visuals. The purple-and-gold presentation feels eerie and polished, with symbols inspired by occult lore, medieval relics and classic card ranks.

The standout is the Wild Reels system, where summoned reels lock in multipliers and can stack across winning lines. Add the Bonus, Super Bonus, Epic Bonus and buy features, plus a 25,000x max win. Try the free demo on BonusTiime.

Summon Slot Specifications

Summon uses a 5×5 grid with 15 fixed paylines. It keeps the action simple and focused on line hits, while the house edge sits at 4%.

RTP (Return to Player)

The RTP is 96%, which supports solid long-term returns for a Phantom Interactive slot.

Volatility

High volatility means less frequent hits, bigger swings, and a setup that suits cautious staking.

Max Win

The 25,000x max win means a €1 spin can reach €25,000.

Summon Slot Features

Summon bundles Wild Reels, Bonus, Super Bonus, Epic Bonus and the Buy Bonus menu into a single feature set, so every purchase option and free-spin path links back to the same summoned-reel system.

Wild Reels

Wild Reels are the core mechanic in Summon. A summoned reel turns every position on that reel into a Wild, and each one carries a multiplier. When a winning line crosses several summoned reels, their multipliers add together rather than replacing each other.

Bonus

Bonus starts when you land 3 Bonus symbols. It awards 10 free spins, and every 3 Bonus symbols collected summons a Wild Reel, then adds 2 more free spins. This makes the bonus round progress as you play, while keeping the reel summons locked in for the round.

Super Bonus

Super Bonus triggers with 4 Bonus symbols. It gives 10 free spins and starts with one Wild Reel already summoned, plus a pre-filled meter. That head start makes it stronger than the base bonus because you begin with an active Wild Reel and faster access to more summons.

Epic Bonus

Epic Bonus triggers with 5 Bonus symbols. It works like the Super Bonus but boosts Wild Reel multipliers by +5x instead of +2x, and it cannot be bought directly. That makes it the top bonus tier in Summon, with the same summoned-reel structure but a much stronger multiplier profile.

Hyper Boost

Hyper Boost is a Super Ante-style option that greatly increases the chance of triggering the Bonus, Super Bonus and Epic Bonus, for x10 the bet per spin. It does not change the core game rules, but it pushes the bonus hunt harder, which suits players who want more aggressive online slot gameplay.

Summoning

Summoning is a special buy feature that starts a single spin with 3 to 5 Wild Reels already in play. It costs x1,000 the bet. Bonus symbols do not appear during this spin and the multipliers do not increase within it.

Buy Bonus

This feature lets players buy access to the game’s bonus paths and activation boosts.

• Super Boost: x2 the bet per spin – raises bonus trigger chances.
• Hyper Boost: x10 the bet per spin – greatly improves bonus odds.
• Summoning: x1,000 the bet – a single spin with 3 to 5 Wild Reels.
• Bonus: x100 the bet – buys 10 free spins.
• Super Bonus: x300 the bet – buys 10 free spins with one Wild Reel already summoned.
• Mystery Summon: x300 the bet – Super Bonus, Epic Bonus or a dead spin.

Mystery Summon

Mystery Summon gives one of three outcomes when activated. It can award a Super Bonus with 40% probability, an Epic Bonus with 10% probability, or a near-miss dead spin with 50% probability. That mix adds risk, but it keeps the exact result hidden until the feature resolves.

Summon Slot Review

Summon builds its identity around a gothic cathedral setting, heavy stone framing and occult symbols like the pentagram, horns and relics. The visual language suits the title well, while the candlelit background and dark palette keep the focus on ritual rather than spectacle.

The real hook is the Wild Reels system, because summoned reels add stacked multipliers instead of just acting as substitutes. That gives the bonus structure a clearer purpose than a standard free spins loop, although the 100x buy price and high volatility make the ride expensive and selective.

Summon suits players who want a feature-led slot with a strong ceiling and do not mind waiting for the bonus to do the work. It is best for bonus hunters and math-minded players, while anyone wanting fast, frequent base game action may find the pacing too demanding.

Summon Slot FAQ