Los Cuatro Esqueletos: Slot Overview

Los Cuatro Esqueletos (translated into English as ‘The Four Skeletons’) is a Mexican-themed online slot created by Relax Gaming. Zooming in further, Los Cuatro Esqueletos draws from Mexican traditions and focuses on one of the best-known elements – the Day of the Dead celebration held around the beginning of November. If you’ve spent much time playing online slots, chances are you’ve seen this theme pop up before. It’s become a favourite for studios wanting something cultural, vibrant, and usually paired with a lively Mariachi-style soundtrack.

Having taken other Day of the Dead titles for a spin such as Thunderkick’s Esqueleto Explosivo 2, Play’n GO’s Muerto en Mictlan, or Muertos Multiplier Megaways from Pragmatic Play, we arrive at Relax Gaming’s take. This is Los Cuatro Esqueletos, and to spoil it slightly, it’s a ‘book of’ slot dressed in an energetic Mexican skin rather than the usual Ancient Egypt setting. The reels sit in the centre of a colourful town somewhere south of the Rio Grande, with flags strung between buildings painted in bold patterns and bright shades. It feels celebratory—maybe not the most Day of the Dead-heavy presentation we’ve encountered, but Los Cuatro Esqueletos hits most of the expected audio-visual notes without doing anything particularly standout. The music follows suit: fine, with a noticeable horn section. Moving on.

Offered either with or without Relax Gaming’s Dream Drop jackpot network, the standard non-jackpot edition comes with a notably low RTP of 94%. Rated as a medium volatile slot, gameplay takes place on a 5-reel, 3-row layout with 10 paylines—a traditional ‘book of’ configuration. Winning combinations must begin from the leftmost reel and include at least 3 low-pay symbols or 2 high-pay symbols. For staking, the minimum bet is 20 p/c, while the maximum wager reaches $/€100.

The title Los Cuatro Esqueletos becomes clearer once you check the paytable. That’s where the 4 skeleton characters appear as the 4 premium symbols, alongside 10 to A card ranks styled as if stamped onto colourful gravestones. Land a 5 OAK payout and you’ll collect 75 to 500 times the stake with the skeletons, or 10 to 15 times the bet with the royals.

Los Cuatro Esqueletos: Slot Features

As noted earlier, Los Cuatro Esqueletos follows the ‘book of’ formula, meaning expanding full-reel symbols feature in the free spins round, with a couple of small tweaks intended to add a touch of freshness.

Free Spins

Pinatas act as Los Cuatro Esqueletos’ wild, and they also serve as the game’s free spins scatter. In wild form, they substitute for any non-expanded pay symbol to help form winning paylines. As scatters, landing 3 or more awards 10 free spins. While in the free spins feature, hitting 3 or more scatters retriggers a further 10 free spins.

At the beginning of the bonus, several pinatas appear on screen and players pick one. This choice reveals which symbol becomes the special expander during free spins. After each spin ends and any wins are paid out, expanding symbols spread to cover all positions on their reel. If the expander is a premium symbol, it must appear on at least 2 reels, or on 3+ reels if the expander is a low-pay symbol. Expanded symbols pay all lines from any position.

Super Free Spins

Scatter symbols are also collected when they land, and once 600 have been gathered, players receive 10 Super free spins. These work the same way as standard free spins, except 2 symbols are chosen in the pick n click selection before the feature starts. Super free spins can be retriggered, granting +10 free spins plus an additional expanding symbol. The stake used in Super free spins is an average of the bets during the collection – extra info on this can be found in the paytable.

Los Cuatro Esqueletos: Slot Verdict

Not to be a downer, but did we really need yet another expanding-symbol free spins game—aka another ‘book of’ slot? In the right scenario, if a release brings something genuinely interesting, looks exceptional, or has that hard-to-define x-factor, then sure, it can be worth it. Sadly, Los Cuatro Esqueletos doesn’t really deliver on any of those fronts. Relax Gaming is undeniably a top-tier provider, responsible for huge hits like the unstoppable Money Train series, so it’s hardly shocking to say Los Cuatro Esqueletos sits among the studio’s weaker outings.

A couple of drawbacks stand out immediately. First is the underwhelming RTP. If a slot were truly blazing a trail, it might be easier to excuse a poor return—similar to how some ELK Studios games get away with it. But Los Cuatro Esqueletos is entering a category already packed with alternatives for fans of the format. Many casual players might not care much about RTP, yet it’s still hard to justify choosing a 94% option when there are so many better-value picks. Even the game’s supposed ‘twist’ feels questionable. Collecting 600 scatters likely demands a fair bit of dedication, and it’s reasonable to wonder whether this mechanic impacts the RTP in any way. If you do reach the target, the reward is decent, though not especially remarkable given that other slots already offer similar ideas. Not loads, but examples include Legacy of Dead, Sword of Khans, and Rise of Merlin (amongst others) if you want to explore them.

On the positive side, a max win of 10,000x the bet is impressively high for this type of slot, so there’s that. Beyond that, Los Cuatro Esqueletos feels like a fairly average entry from Reflex Gaming, a studio otherwise known for regularly releasing slots that outperform the competition. Los Cuatro Esqueletos, in comparison, mostly just keeps pace rather than standing out.