The game has a storyline that is fit for a superhero movie where the hero and his friends are on a mission to save the city from the hands of evil power. The game is set in a metropolitan city with skyscrapers. It appears the burning city pollutes the city; the horizon symbolises an upcoming catastrophe.
Three heroes are starring at the Ternion, a red male ranger and blue and green female heroes. The reel is set with the view of the city in the background.
The symbols used in the game are related to the superhero theme and regular card symbols. The game's lower-paying symbols are the card symbols 10, Jack, Queen, King and Ace.
The high-paying symbols of the Ternion are the three superheroes with special powers that can be unblocked during the game to help the players. The game also features a wild and a scatter symbol.
Play’n GO has enabled Ternion with exciting features; the heroes come with powers to help the players, and the game also is packed with other features like a call for heroes, doomsday spins, ice shards, blade flurry and pillars of flame.
When a player lands on Wild Symbol, it can substitute other symbols to facilitate more spinning combinations.
Wild symbols facilitate more winning combinations by substituting for other paying symbols. It can appear anywhere on the reel.
The game's scatter symbol is the doomsday symbol; when three or more scatter symbols appear on the reel, it can trigger the Doomsday Free Spins feature. For 3 scatter symbols, 8 free spins are rewarded, and for 4 scatter symbols, 10 free spins and 5 scatter symbols can reward with 14 free spins.
The free spins Call For Heroes feature can be triggered; if more scatter symbols appear during the doomsday feature, more spins are added. Chances are high that the heroes will appear during doomsday; their powers are as follow.
The blue ranger has the power of ice. When she comes to help, she gives 3 to 10 wild symbols to increase the payout potential.
When the green ranger appears during the bonus round or at the base game, she removes all the low-paying symbols from the reel.
Pillars of Flame: the male red ranger has the power of red searing flames when he appears on the base game or bonus round. When the hero appears, he turns 1 to 4 reels into a wild symbol.
Ternion has an RTP rate of 96.20% with high volatility. The reel format is 5x4, and the winning combination is received when a player lands on 3 or more similar symbols on the payline.
The game's highest paying symbol is the wild symbol and the Red Ranger with a maximum payout of 50 for 5 on the payline, followed by the Green ranger with a maximum payout of 37.5. Then the Blue ranger with a maximum payout of 25.