Hades Slot by Yggdrasil Gaming

Wild Hunt fires on every base-game spin. There is no trigger condition, no scatter prerequisite, no respin gate - the moment the reels lock in, Hades steps in from the right of the cabinet and challenges all four high-pay icons to individual fights. Each fight he wins converts that symbol type into a Wild for that single spin. He can take all four down or none. The interesting consequence is that the reels themselves never produce a Wild organically. The only path to a Wild on the grid is the fight resolution, which means a spin where Hades loses every duel pays out flat with no substitutions at all.

Gigablox is the second layer running on top. Symbols can land as 2x2, 3x3, 4x4, 5x5 or full 6x6 oversized blocks counting as multiple individual icons for line evaluations across the 50 fixed paylines. Scatters land Gigablox-sized too, which matters because the Free Spins trigger needs five or more scatter positions and a single 3x3 scatter block already counts as nine of them. Spin count awarded equals the number of scatter positions at trigger, so a clean 3x3 plus a couple of singles can open the round at 11 or 12 spins immediately.

Inside Free Spins the Progressive Multiplier becomes the entire engine. A counter tracks every Wild that Hades creates across the whole round, not per spin. The first 10 conversions push the round multiplier to x2 and add 2 extra spins. The next 15 (25 cumulative) bump it to x3 with another 2 spins. 45 total reaches x5, and 70 caps the ladder at x10 with a final 2 spins on top. Gigablox Wilds count by their full square footprint toward that counter, so a 4x4 Hades conversion adds 16 to the tally in one go and a 6x6 adds 36 - which is how the round can vault from x2 to x10 inside two or three lucky spins instead of grinding every tier in sequence.

The cabinet itself looks the part. Towering carved-stone columns flank the 6x6 grid, snake-and-skull motifs drip lava down the sides, and a pale-blue Hades with glowing emerald eyes and obsidian-gold armour stands beside the reels watching the fights play out. Background is a deep-purple cosmic abyss with a fiery horizon glowing at the bottom edge. No buy bonus, no ante toggle, no jackpot wheel. Just the duel mechanic and the multiplier ladder doing the work. The wider Greek mythology catalogue from Yggdrasil covers most of the pantheon if this underworld setting holds appeal.