Blue Star

Blue Star Slot Review — AGT Software

Blue Star is a 5-reel, 20-payline slot from AGT Software, released on 16 June 2022. Its paytable leans on two wild-expansion mechanics — regular stacked wilds and expanding wilds — set alongside a jackpot feature rather than a scatter-triggered free-spins round. The 20 fixed paylines and a betting range stretching from 0.1 to 100.0 per spin give the game a straightforward, line-based structure rather than a cluster or Megaways reel system.

AGT Software has operated out of Latvia since 2019, and the studio’s output is checked by independent testing labs including BMM Testlabs and Gaming Laboratories International (GLI).

Core Gameplay Experience

The reel grid holds five reels across 20 fixed paylines, so every spin evaluates the same line pattern rather than a shifting cluster count. The same 20-line structure scales from small-stake testing to considerably larger wagers without changing the line count itself.

Visually, Blue Star keeps to a classic fruit-machine set: grapes, pears, strawberries and plums sit next to bells, sevens and a central star symbol, framed in blue and black. That mixed fruit-and-star symbol set places the game outside licensed or adventure-themed slot clusters, closer to the broader group listed under Other-themed slots.

Features and Mechanics

Wilds substitute for regular paytable symbols to complete line wins. Expanding Symbols and Expanding Wilds grow to cover a full reel when they land, which increases how many of the 20 paylines a single symbol can complete at once. Stacked Symbols and Stacked Wilds occupy multiple positions on the same reel, raising the odds that several lines pay from one spin rather than spreading matches thinly across the grid.

The feature list for Blue Star does not include a separate free-spins round. Scatter Symbols pay through the base paytable and work alongside the wild set. A Gamble Feature sits apart from the core paytable, letting a player risk a win for a chance to double it. A Jackpot feature runs alongside the regular reels, adding a separate top-end prize layer to the game’s payout structure. Readers who specifically track Expanding Symbols slots can see how this mechanic appears across other titles in the catalogue.

RTP, Volatility and Payout Model

Blue Star returns a theoretical 96.3% RTP at medium volatility, the two figures that set its payout rhythm over time rather than per session. With no free-spins round in the feature list, the game’s variance runs through base-game wild expansions, stacking wilds, the jackpot feature and the optional gamble round, instead of through one larger bonus trigger. Medium volatility generally means a mix of smaller, more frequent line wins and occasional larger ones from stacked or expanding wilds, rather than long dry stretches followed by one outsized payout. The betting range is wide enough that bankroll planning depends heavily on which end of it a session actually uses, since the same 20-line structure pays out very differently at the low and high ends of that spread.

Similar Slots — Comparison

All six titles in this comparison carry the same medium volatility rating, and the RTP spread between them is small: South of the Border leads the group at 96.5%, paying an estimated $0.20 more per $100 of bets than Blue Star’s 96.3%, in theory, while Green Hot (96.18%), Lucky Pups (96.11%), Genie Jackpots Wishmaker Jackpot King (96.06%) and Bull Fiesta (96.01%) each sit below Blue Star by between $0.12 and $0.29 per $100 of bets, in theory. Max win separates the group far more than RTP does: Genie Jackpots Wishmaker Jackpot King tops the table at 10,000x, reached through an added Hold & Win respin mechanic that South of the Border and Bull Fiesta also use, which makes a direct comparison with Blue Star’s plain paylines-plus-jackpot structure a mechanic-adjusted one rather than a like-for-like one. Among the three titles sharing Blue Star’s exact paylines-plus-jackpot mechanic, its 3,000x ceiling sits between Green Hot’s 5,000x and Lucky Pups’ 2,340x, and says nothing about how often any of the three titles actually pays.

How to Play Blue Star Online

Blue Star can be opened in demo mode, which runs the same 5-reel, 20-payline structure, wild expansions and jackpot feature without a real-money stake — a practical way to see how the stacked and expanding wilds interact before betting from 0.1 per spin. As of 2 November 2026, five casinos in the catalogue carry AGT Software’s slots, including BirdSpin, SpinLine and 22bet; which of the studio’s titles each lobby lists, and whether Blue Star’s demo mode is available there, still varies by operator. Readers comparing the wider line-based format can browse the slots category for other 20-payline titles alongside AGT Software’s own catalogue.

Verdict on Blue Star

Blue Star suits those wanting a conventional 20-line slot built around layered wild mechanics — stacked wilds and expanding wilds — plus a jackpot feature, without relying on a free-spins bonus to carry the game’s variance; the 96.3% RTP and medium volatility keep the payout rhythm fairly even across a session, and demo mode shows how those wilds interact before any real-money bet is placed. It suits less well a player looking specifically for a scatter-triggered bonus round, since none is listed among its features, or for the highest possible ceiling among its closest comparables, where Genie Jackpots Wishmaker Jackpot King reaches 10,000x against Blue Star’s 3,000x.