Original slot game · playable demo

Specimen Hunter

A British carp-fishing slot built around one moment every angler knows: three bite alarms going off at once.

Specimen Hunter gameplay: a line win with three wild Leather Carp at a UK lake at dawn

The idea

Carp anglers fish with three rods, each with an electronic bite alarm. When all three go at once, it's chaos and joy. In Specimen Hunter that moment is the bonus trigger: a bite alarm on each of reels 2, 3 and 4 starts the Three Rods free spins.

In free spins, Specimen Fish land with real weights, from 2lb 4oz up to a record 64lb 8oz, and each one pays the moment it lands.

The Three Rods trigger: alarms on reels 2, 3 and 4 with all three rod lights on

See it play

Recorded from the real game: a line win, the paytable, then a full Three Rods feature paying 139.7× stake (£139.70 at £1). Silent recording; the game itself has music and sound.

The numbers

96.14%Theoretical RTP, worked out exactly from the reel strips
1 in 152Free spins trigger rate
63.7×Average free spins win
25.5%Base-game hit rate
7.2Volatility (standard deviation, × stake)
5,000×Maximum win per round (cap)

From the PAR sheet: exact strip maths plus a 50-million-round simulation of the production engine (simulated RTP 96.06% ± 0.20%). Design figures, not independently certified.

The moments

A 45lb 4oz Specimen Fish worth £100 lands in free spins

Weighed and paid

Every fish shows its weight and pays immediately. No collector symbol needed.

Huge Catch big-win celebration counting up

Big Catch tiers

Big, Huge and Monster Catch at 15×, 50× and 200×, before the feature summary.

Fish weight to prize table, up to 64lb 8oz for 1,000× stake

Record fish

52lb 0oz pays 250× and 64lb 8oz pays 1,000× stake.

Built for GB rules

RequirementIn the game
£5 stake cap; £2 for 18–24sApplied from the operator's player settings
2.5 s minimum spinFixed reel timings
No turbo or slam stopReels can't be sped up or stopped
No celebrating returns ≤ stakeShown plainly: no sound or animation
No autoplay or bonus buyNeither exists
Player informationSession time, net position, history, reality checks

How it's built

One engine, two places. The same tested engine file decides outcomes in the browser demo and on a dependency-free game server, which handles sessions, stake caps, a whole-pence wallet and safe retries.

Everything original. Symbols, scenery, music and sound are generated in code with PixiJS and Web Audio: no licensed assets.

Checked. 15 automated tests, and a formula-driven PAR sheet that matches the engine exactly.