Spinberry is taking us down to Mexico for a Day of the Dead celebration in Calaveras Fortuna. Visually, it’s a treat, a 5×4 grid packed with vibrant, painted sugar skulls that really pop off the screen. But as a reviewer, I always look past the paint job to see what’s under the hood. After putting it through its paces, I found a game that offers some incredibly satisfying bonus action, even if the math model leaves a bit to be desired for hardcore players.
Here’s how it plays.
A Flat Paytable in the Base Game
Calaveras Fortuna plays out over 20 fixed paylines, and I’ll be honest: the paytable is very flat. The symbols are split into three tiers of colored skulls. Landing a five-of-a-kind of the lowest tier (pink or orange) just gets your stake back at 1x. The mid-tier green and yellow pay 1.5x, while the top-paying red and blue skulls max out at 5x.

Because there are no multipliers anywhere in the base game, a single line win is never going to blow your mind. During my session of about 25 spins, the base game felt a bit like a grind. I hit a dry spell of seven dead spins, and my hit rate hovered around 25%. My best base game hit was a modest 4.3x when a stack of yellows connected across multiple lines. It’s clearly a game that makes you wait for its main feature to do the heavy lifting.

The Saving Grace: Calavera Wild Conversions
The base game might be quiet, but the Calavera Wild Conversion mechanic is genuinely fun. Keep an eye out for the golden sombrero skull, which can land on reels 1, 3, or 5.
When he drops, he doesn’t just act as a Wild. He selects one random skull color on the board and turns every single instance of that color into a Wild for that spin. Because it targets a whole symbol type rather than a single cell, one lucky trigger can absolutely flood the grid with Wilds.
Free Spins: Guaranteed Action
The real fiesta starts when the free spins trigger: they can kick in at random whenever a Marigold scatter lands, and they award a flat 10 Free Spins.
Often, bonus rounds can be volatile and leave you with dead spins, but Calaveras Fortuna takes a different route. During the feature, the Wild Conversion mechanic is activated on every single spin. You are guaranteed a golden skull and a wave of converted wilds ten times in a row. The ideal scenario here is the game selecting a color that dominates the first two reels, allowing those top-tier red and blue skulls to connect all the way across the grid. It’s visually super satisfying and keeps the momentum high throughout the whole feature.
The Math: A Limit on the Loot
As fun as the guaranteed Wilds are, we have to talk about the math. Because the game lacks multipliers, the win potential hits a hard limit. A full screen of Wilds pays the top 5x prize across all 20 lines, capping a single spin at 100x your stake. Over 10 free spins, the absolute maximum win the game can physically pay out is 1,000x.
When you compare that to other 5×4 games on the market, like Hacksaw Gaming’s Buried by Night, due in November, which pushes a 15,000x max win by using dueling multiplier wilds, Calaveras Fortuna feels a bit lightweight. Add to that an RTP (Return to Player) of 93.16%, which is noticeably below the modern industry average of 96%, and it’s clear this game relies on a volume of small wins rather than big, life-changing hits.
However, if you’re a casual player who hates dead bonus rounds and prefers a game where the feature guarantees constant, screen-filling action, Calaveras Fortuna is a highly entertaining, low-pressure way to spend a session. Just keep your expectations for the payouts in check, and enjoy the fiesta.