3 Coin Towers Slot by Endorphina

88 free spins from a single trigger. That's the Green Pagoda's bonus, and yes, it plays at your full bet level for all 88 rounds. Expanding Wilds carry over from base play, and both the Hold & Win and Pick'em bonuses fire during those free games too. Retriggers add even more spins on top. The session length alone makes this the centerpiece, but getting there depends on the gong mechanic - and that's entirely random.

Three colored pagodas sit above the reels. Gongs matching each color land on the grid during regular play, fly up to their tower, and might activate that tower's bonus. Might. One gong could do it. Thirty could pass without anything firing. There's no meter, no collection threshold, no "land 3 to trigger" - the game just decides. The Red Pagoda opens a Hold & Win round starting with 5 bonus symbols on the grid, each carrying a value between 1x and 30x. Three respins, reset on every new symbol, and filling all 15 positions awards the Ultra prize at 1,000x. Between that top tier and the MAX at 300x sits a gap that only a full-grid fill can bridge. The Blue Pagoda runs a Pick'em game with 16 bags of gold. Each bag hides either a flat prize (5x to 10x) or a colored Award symbol in one of four tiers - Green at 20x, Blue at 50x, Purple at 200x, Red at 500x. Collect three of any single color and the round ends, paying out those Awards plus whatever regular prizes you picked along the way. Three Reds pays 1,500x from Awards alone before adding scraps.

One detail about the gongs: when they land on a reel position and fly up to their pagoda, the symbol sitting underneath gets revealed. So gong appearances aren't blank spaces on the grid - they uncover potentially paying positions while simultaneously feeding the bonus triggers.