• Min stake: 20p
  • Max stake: £622.50
  • Max payout: £250,000
  • Jackpot: No
  • Paylines: 20
  • Special features: Three Heroes, Doomsday Free Spins


A doomsday device has been activated.

Join three superheroes in a nail-biting quest to save Victory City. Should you beat the clock, you could potentially win up to 11,111x your stake.

This game is loaded with thrilling features, like Doomsday Free Spins. Land between three and eight gold watch scatter symbols to trigger these free spins. At the same time, the Three Heroes feature could fire out epic multipliers.

Join in the action from just 20p. Play Ternion online.

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Three Heroes

Each hero has their own modifier, which can randomly trigger during the base game. Ice Shards – Ice creeps over the board, creating 3 to 10 wilds. Blade Flurry – Low paying symbols are removed, with high pays taking their place. Pillars of Flame – Makes 1 to 4 reels wild. 

Doomsday Free Spins

Land 3, 4, or 5 gold watch scatters to be awarded 8, 10 or 14 Doomsday Free Spins respectively. The Call for Heroes feature can help trigger the bonus when 2 scatters land on the first two reels. While the bonus round is active, landing 3, 4, or 5 scatters gets you 4, 5, or 7 extra free spins respectively. It’s possible to be awarded up to 38 free spins.

During free spins, the Three Heroes feature can become more powerful. If wilds land on top of one another, the multiplier increases by +1. Also, crystal symbols are collected when they land in free spins. Gather 5 crystals and hero superpowers are awarded.

For information on symbols and base game instructions, please see in-game help menu.

Malfunction voids all plays and pay. RTP = 94.20%