- A solid addition to the popular series from Elk Studios
- Plenty of features including the CollectR mechanic
- A low RTP as expected but a nice win potential
Pirots 4 is a feature-packed slot from ELK Studios, continuing the parrot-led chaos of the popular Pirots series, this time blasting into space. Pirots 4 retains the signature charm of its predecessors while introducing new mechanics like Corner Bombs, Alien Invasion, and the Lost in Space bonus. The game runs at a fixed RTP of 94%, regardless of whether you play spins or use the X-iter bonus buy feature, which isn’t exactly a surprise but still disappointing.
RECOMMENDED CASINOS TO PLAY Pirots 4 Slot
Pirots 4 Slot Bonuses and Features
CollectR Mechanic. Each round, birds move around the grid collecting gems of their matching colour. They continue until no more matches are possible, with avalanches occurring after each collection. Collected symbols are tracked in a meter that unlocks feature symbol releases when filled.
Feature Symbol Release. Once the collection meter fills, 1–3 feature symbols can be released, converting gems into one or more of the following:
- Scatters / Super Scatters – Trigger free spins or super free spins.
- Wilds – Substitute for any gem at its current upgrade level.
- Coins – Pay their value when collected (up to a Max Win coin).
- Upgrade / Upgrade All – Boost one or all gem values by 1–3 levels.
- Transform – Changes nearby gems to match the collecting bird’s colour.
- Spacecorn – Allows birds to cross empty grid spaces once.
- Black Hole – Rearranges symbols and birds.
- Alien Invasion – Stores and activates a special feature involving a duel between birds and a Space Bandit.
Switcheroo & Power Clash. Switcheroo triggers when adjacent birds can’t collect anymore, allowing one to teleport to a new collectable symbol. Power Clash is ctivated when 3+ birds are stuck next to each other. A 5×5 blast removes symbols, and birds collect any surrounding feature items.
Corner Bombs & Grid Expansion. Corner bombs assigned to each bird colour explode when a matching bird collects a symbol above them. They Remove a 3×3 grid area and birds, expand the grid by destroying part of the space station and create tunnels and space portals, allowing access to new symbols and movement paths.
Lost in Space Bonus. Triggered by clearing all collectable symbols during a Spacecorn event. Played on an 8×8 board, players get 3 spins to land coins or bridges. Birds collect adjacent coins at the end, with total values awarded.
Alien Invasion. Initiated after collecting its symbol. The Space Bandit collects symbols column-by-column and duels birds. If victorious, it removes birds and boosts a multiplier. If birds win, the feature ends. A total sweep happens if the Bandit defeats all four birds.
Charlie’s Extra Chance. A random second-chance mechanic that may activate when no more moves are possible, detonating 1–4 corner bombs to refresh the grid.
Free Spins & Super Free Spins. This is triggered by collecting 3 Scatters. 5 free spins are awarded, with +1 per additional Scatter collected. Grid size, meter progress, and gem upgrades persist across spins. Super Free Spins start on an 8×8 grid and apply all upgrades globally.
Conclusion
Pirots 4 slot from Elk Studios successfully builds on the distinctive mechanics of its predecessors, delivering a visually engaging experience that blends arcade-style collecting with inventive feature stacking. While it doesn’t radically innovate, it refines and expands the core formula with additions like corner bombs and grid expansion. If you enjoy the other games in the series, you’ll surely like this one too, but as always we’d love to see a higher RTP. For others in the series, check out Pirots 3 slot here.
A Nice Addition To The Popular Series
Pros
- As good as others in the series.
- Unique space theme.
Cons
- Low RTP as usual.