Legend of Helios Demo Slot by RTG Free Play

Legend of Helios is an online Slot from RTG.

Quick Facts

- Layout: 5 reels with 4-3-4-3-4 configuration

- Paylines: 25 fixed (increases to 50 during Free Games)

- Key mechanics: Mystery Stacks, Respin with Locking Mystery Stacks, Bonus Wheel

- Special symbols: Helios Wild, Sun Scatter, Mystery Symbols

How the Game Plays

Legend of Helios is a visually striking slot from Rtg centered on the Greek sun god. Set against a backdrop of Mount Olympus, the game uses an unorthodox 4-3-4-3-4 reel structure that accommodates 25 fixed paylines. Wins are formed by landing three or more matching symbols from left to right, with Helios himself serving as the highest-paying regular symbol. The presence of Mystery Stacks adds a layer of unpredictability to the base game, as these symbols can transform into any other matching icon to create large clusters of wins.

Free Spins Explained

The free games are triggered via the Bonus Wheel portal, which is activated by landing three scatter symbols on the middle reels. Depending on where the wheel stops, players can unlock one of four distinct free spin modes. These include 14 free games played on an expanded 50-payline grid, 12 free games with a 3x win multiplier, 10 free games featuring "bursting" wilds that spread across the reels, or 8 free games with extra wilds and longer mystery symbol stacks.

Mystery Stacks & Respin Feature Explained

Mystery symbols can appear stacked on any reel at any time. If identical Mystery Stacks completely cover the first and second reels, the Respin with Locking Mystery Stacks feature is triggered. During this mode, the first two reels remain frozen in place while the remaining reels spin. If no win is achieved on the first respin, the game continues to award respins until a winning combination is successfully formed.

Click the Play for Free button to load the Legend of Helios demo, test its features and payouts and decide if it is a game you enjoy.