Pirots 4 is one of the most innovative online slots released in 2024. Developed by ELK Studios and launched on 24 July 2024, the Pirots 4 slot introduced an industry-first feature to online slots: time-based evolution, where the game world physically changes over time based on an in-game countdown. When the countdown hit zero, Pirots 4 evolved from its original Lost in Space setting into Frozen Fury (a new ice-world expansion), and later into Inferno (the final fire-world expansion). Three games, three settings, one slot.
The Pirots 4 slot is the fourth main instalment in ELK Studios' acclaimed Pirots saga that began in 2023, following the original pirate-themed Pirots, the prehistoric Pirots 2, and the record-breaking Wild West-themed Pirots 3. At the heart of all four games sits ELK Studios' trademark CollectR™ mechanic, which replaces traditional paylines with four bird characters that roam a dynamic 6x6 grid collecting matching-coloured gems.
Pirots 4 takes the CollectR foundation and layers on grid expansion up to 8x8, symbol transformations, upgrade tokens, the Space Bandit villain, Black Hole resets, and a Free Drops bonus game with persistent progress that can climax in the Super Bonus. Below we cover everything you need to know about playing the Pirots 4 slot at Smooth Spins.
Getting started with the Pirots 4 slot at Smooth Spins takes only a couple of minutes. The setup is the same whether you are an experienced ELK Studios player or trying the Pirots series for the first time.
Steps to Play the Pirots 4 Base Game
The Pirots 4 slot does not play like a traditional slot. There are no paylines. Instead, four bird characters roam the 6x6 grid collecting gems that match their colour.
Set in a science fiction environment, the visuals in the Pirots 4 slot feature animated birds in spacesuits moving across a tiled grid. The four birds (also known as the "Fearful Four" in the Pirots saga) each match their assigned gem colour, with their backstory in Pirots 4 being that they jumped through a black hole in pursuit of a space monster that stole their treasure from the Wild West setting of Pirots 3.
Each bird shows distinct reactions during gameplay, with smooth sliding, collecting, and conflict animations. The colours are bold, with each gem matching its bird. Explosions and collapses enhance the visual flow, while layered ambient audio reinforces the setting and adjusts dynamically during feature sequences.
One of the defining visual features of the Pirots 4 slot is the three different worlds, each with its own art style:
Each evolved world brings genuinely different gameplay mechanics, not just cosmetic reskins. The Fearful Four even dress for the occasion.
The Pirots 4 slot uses ELK Studios' CollectR™ mechanic, which means there are no traditional paylines. Wins are generated by the four birds collecting gems of their matching colour from adjacent positions on the grid. The paytable below shows the payouts based on the number of gems each bird collects in a single chain.
The four birds in the Pirots 4 slot are the heart of the gameplay. Each bird collects gems of its assigned colour:
Symbol | 1x | 2x | 3x | 4x | 5x | 6x |
Red Idol | 0.25x | 0.4x | 0.75x | 2x | 6.25x | 30x |
Pink Idol | 0.2x | 0.3x | 0.6x | 1.6x | 5x | 15x |
Green Idol | 0.15x | 0.25x | 0.45x | 1.2x | 3.75x | 10x |
Blue Idol | 0.1x | 0.15x | 0.3x | 0.8x | 2.5x | 7.5x |
Red Gem | 0.1x | - | - | - | - | - |
Purple Gem | 0.1x | - | - | - | - | - |
Green Gem | 0.05x | - | - | - | - | - |
Blue Gem | 0.05x | - | - | - | - | - |
The Pirots 4 slot is one of the most feature-rich slot games released in 2024. The CollectR™ mechanic provides the base gameplay, while a layered system of grid expansion, symbol transformations, special events, and two-stage bonus rounds builds increasing levels of intensity across longer sessions.
At the centre of the Pirots 4 slot format is the CollectR™ mechanic. Each of the four birds moves independently across the grid and gathers gems of its assigned colour from adjacent positions. Every collection triggers a cascade where the collected gems disappear and new symbols fall to fill the empty spaces, creating chain reaction wins.
As gameplay progresses, Bomb symbols collected by the birds unlock new sections of the grid, expanding the playing field from the starting 6x6 layout up to a maximum of 8x8. The expanded grid gives the birds more room to roam and more space for symbols to drop into.
Several mechanics in the Pirots 4 slot can transform or upgrade the symbols on the grid:
These upgrade effects persist if the bonus round is triggered, carrying any base game progress into the bonus.
Three random events shake up the grid behaviour during the Pirots 4 base game:
Two additional events round out the base game mechanics:
Three Bonus symbols collected by the birds during base play trigger the Free Drops Bonus Game. The bonus awards five free drops to begin with. Crucially, all upgrades, grid expansions, and progress from base play are preserved and remain active throughout the bonus, making it possible to enter the bonus with a fully-upgraded 8x8 grid.
If one Super Bonus symbol appears alongside the regular Bonus symbols during the trigger, the session activates the Super Bonus Game. This enhanced format dramatically increases the win potential, with the maximum 10,000x stake payout most achievable through Super Bonus runs.
The Pirots 4 slot operates on a 6x6 grid layout with no paylines. Wins are created by the four birds collecting matching-coloured symbols through the CollectR™ system. Once collected, the gems disappear and new symbols cascade into place, potentially triggering further collections in the same chain.
The grid can expand up to 8x8 over the course of a session, with bombs unlocking previously hidden areas. Each spin can trigger additional effects through symbol transformations, upgrade tokens, rockets, and the various event symbols. The base game hit frequency is approximately 25%, which means a winning collection lands on roughly one in every four spins on average.
There is no fixed number of win paths in the Pirots 4 slot. The outcome of each spin is determined by the birds' positions on the grid and their interactions with the symbols that drop. Combined with the persistent upgrade progress that carries into the bonus round, no two Pirots 4 sessions play exactly the same way.
The Pirots 4 slot replaces traditional reels with a system focused on movement, collection, and progressive grid expansion. Developed by ELK Studios, the structure avoids fixed paylines and instead builds gameplay around four bird characters collecting matching-coloured gems while cascading reactions unfold around them. Most of the variation comes from shifting layouts, symbol upgrades that carry up to seven levels, the Rocket mechanic, and the persistent progress that survives the transition from base game into the Free Drops Bonus and Super Bonus Game.
Players who prefer high-volatility slots with unconventional formats and longer session pacing will likely find the Pirots 4 slot a natural fit. The 10,000x maximum win, the three evolving worlds (Lost in Space, Frozen Fury, and Inferno), and the industry-first time-based evolution feature all combine to give Pirots 4 a level of replay value that few 2024-released slots have matched. The Pirots 4 slot remains one of the most ambitious and rewarding ELK Studios titles currently available in the Smooth Spins lobby.