PG SoftPG Soft

    Tomb of Treasure

    8.0/10
    Release May 2019· Updated August 2026

    Tomb-exploration slot by PG Soft (May 2019). Grid expanding to 7,776 ways, respins and multiplier, 100,000x advertised / 8,137x simulated. BetsRank score: 8.0/10.

    RTP
    96.47%
    Volatility
    Medium
    Max Win
    100 000x
    Grid
    5x3 expanding up to 5x6
    Bonus Buy
    No
    Expanding Reels Feature (grille qui grandit)Symbole Power sur le rouleau 33 respins par déclenchementMultiplicateur sur les gains de la featureThème exploration de tombeaux
    Tomb of Treasure
    🎰

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    BetsRank Verdict

    Hands-on testing by Alexandre Dubois — bonus tested, multiple sessions

    Released on May 7, 2019, Tomb of Treasure is the PG Soft title that introduced the expanding grid to the studio's catalogue. You start on a 5x3 with 243 ways to win, and the Power symbol landing on reel 3 triggers the Expanding Reels Feature: the grid grows up to 6 rows, taking the combination count to 7,776, with 3 respins and a multiplier applied to every win collected during the phase. RTP 96.47%, medium volatility, and a telling split: 46.88% from the base game against 49.60% from the feature — slightly more than half the value locked inside the expansion mechanic. On the ceiling, two figures coexist and we give both: 100,000x advertised by the studio, against 8,137x recorded in simulation. The gap is considerable and needs to be understood before chasing the headline number. Very low 0.10 minimum bet, no bonus buy.

    Strengths

    • +Expanding grid taking you from 243 to 7,776 ways to win
    • +Multiplier applied to every win during the feature
    • +96.47% RTP and medium volatility, an accessible profile
    • +0.10 minimum bet, among the lowest at the studio

    To consider

    • Huge gap between the 100,000x advertised and 8,137x simulated
    • Close to half the RTP depends on the feature
    • No bonus buy
    • Art direction shows its age next to recent releases

    About Tomb of Treasure

    Released on May 7, 2019, Tomb of Treasure casts the player as a treasure hunter exploring ancient royal tombs, with a committed archaeological-adventure art direction. Its contribution to the PG Soft catalogue is technical: it is one of the studio's first titles to build its entire gameplay around a grid that changes size mid-round. The game starts on a 5 reels x 3 rows layout offering 243 ways to win. When a Power symbol lands on the centre reel (reel 3), the Expanding Reels Feature kicks in: the grid extends up to 6 rows, taking the number of possible combinations to 7,776. The phase grants 3 respins and, decisively, all wins collected during the Expanding Reels Feature are multiplied. The official RTP sits at 96.47%, within the normal market range, with medium volatility that makes sessions steadier than on the studio's high-volatility productions. Its split deserves attention: 46.88% comes from the base game and 49.60% from the expansion feature. In other words, slightly more than half the theoretical return depends on the Power symbol landing — a strong dependency, though less extreme than on modern slots where 70 to 80% of the RTP is locked in the bonus. On maximum potential, two figures circulate and you need both: PG Soft advertises 100,000x the stake, while the published simulation caps out at 8,137x. This kind of gap is not unusual at the studio, but its scale here is particularly marked: the headline figure corresponds to a set of conditions whose probability is close to nil, and should not serve as a playing benchmark. Two final practical points: the bet range runs from 0.10 to 10, a very low entry suited to small budgets, and no bonus buy is offered — the Expanding Reels Feature has to be earned in natural play.

    Key mechanics

    • 5x3 grid expanding up to 5x6
    • 243 ways to win, up to 7,776 during the feature
    • Power symbol on reel 3 → Expanding Reels
    • 3 respins with a multiplier on every win
    • No bonus buy

    Tomb of Treasure FAQ

    What is the RTP of Tomb of Treasure?

    Official PG Soft RTP: 96.

    47%, split between 46. 88% for the base game and 49. 60% for the Expanding Reels Feature. Some operators run reduced-RTP versions: check the game's info menu.

    What is the real max win of Tomb of Treasure?

    Two figures coexist and we give both: the advertised ceiling is 100,000x the stake, but the maximum recorded in simulation is 8,137x.

    The first is a theoretical maximum, the second a measured value.

    How is the Expanding Reels Feature triggered?

    It activates when a Power symbol lands on reel 3.

    The grid then extends up to 6 rows, ways to win go from 243 to 7,776, and the phase grants 3 respins with a multiplier applied to wins.

    What is the volatility of Tomb of Treasure?

    Medium volatility.

    Sessions run steadier than on PG Soft's high-volatility titles, but close to half the RTP depends on the expansion feature triggering.

    Does Tomb of Treasure have a bonus buy?

    No, no bonus buy option is listed.

    The Expanding Reels Feature can only be obtained in natural play via the Power symbol.

    Which casinos offer Tomb of Treasure?

    Tomb of Treasure is available at the casinos in our panel that carry PG Soft, such as CosmoBet or Lussurio.

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    Slot sheet last updated on · Sources: slotcatalog.com, official provider sites, BetsRank hands-on testing