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108 Heroes slot by Microgaming

108 Heroes Slot Review

Free demo, RTP, volatility and max win

8.0Value score · Very good · how it works

108 Heroes review: a 2017 Microgaming slot with a 96.56% RTP and low volatility. What the official data covers, what it leaves out, and the costs.

  • #447by RTP of 3,708 slots
  • #636by value of 3,708 slots
  • #44by value of 176 Microgaming slots

Play 108 Heroes free: demo, no sign-up

Free play money from Microgaming's official demo. 18+. No deposit and no account; a demo does not predict real results.

108 Heroes · Microgaming official demo

Basic information

108 Heroes basic information
SoftwareMicrogaming
Release yearNot published
RTP96.56%
VolatilityLow
Max winNot published
Hit frequencyNot published
Game typeSlot
Data verified2026-09-28

Source: Microgaming game page; RTP database by toolsgambling.com (CC BY 4.0); image: Microgaming promotional image from the official game page. How we collect data · Report a mistake

108 Heroes review

Sometimes the honest review is a short one. For 108 Heroes, a Microgaming title released in July 2017, the studio's page offers a details panel and no description at all: release date, RTP, volatility, bet limits and a maximum exposure. There is no word on theme, grid or features. What remains is a clear numeric profile, and that profile is reasonably attractive: a 96.56% RTP paired with low volatility.

Known facts at a glance

According to Microgaming, stakes run from $0.15 to $75 per spin and volatility is Low. The RTP is a single 96.56%. Beyond that, the official source in our data is silent. We have no rules, no paytable and no list of bonus features, so this page does not describe any. If you want to know how the game plays, the studio page itself is the only reliable place to look.

Cost per session

A 96.56% RTP translates to a 3.44% house edge. Put another way, roughly $34.40 of every $1,000 staked stays with the game over the long term. That edge applies at any stake, so the cost grows in step with the bet: 100 spins at $0.20 cost about $0.69 on average, 100 spins at $1 about $3.44, and 100 spins at $5 about $17.20.

Low volatility suggests a game that pays smaller amounts more regularly rather than one that holds back for a big moment. That makes those averages a slightly better guide than they would be on a high-volatility title, though individual sessions still vary widely.

The missing max win

No max-win multiplier is published for this game, and our catalogue does not list one. The only related figure on the studio panel is a maximum exposure of $120,000. That is a ceiling expressed in dollars, not a multiple of the stake, so it says little about what a win could be worth at a typical bet. Until Microgaming publishes a multiplier, the top win is best treated as unknown.

The Water Margin sequel and similar games

The series has one other entry, 108 Heroes Water Margin, listed at 96.06% with High volatility, so it trades return for bigger swings. Among similar low-volatility Microgaming games, Kings of Cash lists 96.68%, while Big Top, Carnaval, Lucky Twins and What a Hoot all list 96.94%. Each returns more on paper. Heavenly Elephant Fortune, at 96.27%, returns less.

Should you try it

If a solid RTP and calm swings matter more to you than knowing the features in advance, the numbers are in its favour. If you want to understand a game before staking money, the lack of published rules is a real gap, and no free demo is listed in our data.

Pros

  • Low volatility for steadier sessions
  • Wide stake range from $0.15 to $75
  • 96.56% RTP, a 3.44% house edge or about $34.40 per $1,000 wagered

Cons

  • No official description of theme or features
  • No max-win multiplier published; only a $120,000 exposure cap
  • No free demo in our data

Verdict

108 Heroes is hard to judge beyond its numbers, because Microgaming publishes almost nothing else. Those numbers are decent: a 96.56% RTP, a 3.44% house edge and low volatility. No max-win multiplier is published, and the absence of rules or a demo means you would be staking money on an unknown design. Several related Microgaming games list a higher return on paper.

Sources: Microgaming official game page; RTP, volatility and max win from the open Slot RTP Database.

108 Heroes series

1 other game of the same franchise by Microgaming, oldest first.

108 Heroes Water MarginMicrogaming · RTP 96.06%

Slots like 108 Heroes

Kings of CashMicrogaming · RTP 96.68%
Heavenly Elephant FortuneMicrogaming · RTP 96.27%
Big TopMicrogaming · RTP 96.94%
CarnavalMicrogaming · RTP 96.94%
Prissy PrincessPlay'n GO · RTP 96.56%
Mythic MaidenNetEnt · RTP 96.58%

108 Heroes RTP

The data lists one RTP for 108 Heroes. Versions are not tracked for Microgaming games, so other versions may exist; check the game's info screen.

  • 96.56% $34.40 lost per $1,000

Cost of 100 spins

Expected cost of 100 spins
BetWageredAverage cost at 96.56%
$0.20$20$0.69
$1$100$3.44
$5$500$17.20

Averages computed from the published RTP; real sessions vary widely around them. RTP calculator

108 Heroes max win, volatility & stats

Headline RTP vs all slotshigher than 88%
Lowest recorded RTP vs all slotshigher than 89%
RTP among Microgaming games#26 of 176
Value score
8.0 / 10
Lost per $1,000 (average)
$34.40
Max win at $1 bet
–
Wins on average
–

Percentiles compare this game with the 3,708 games in the catalogue. Max win: not published.

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108 Heroes Slot FAQ

What is the RTP of 108 Heroes?
The RTP is 96.56%, a house edge of 3.44%. On average about $34.40 is lost per $1,000 wagered.
Is 108 Heroes high or low volatility?
Microgaming rates it Low volatility.
What are the bet limits on 108 Heroes?
The studio lists bets from $0.15 to $75 per spin.
What is the max win on 108 Heroes?
No multiplier is published. The studio page lists only a maximum exposure of $120,000, which is a cap in money rather than a multiple of the bet.
Can I play the 108 Heroes demo without signing up?
Yes. The official Microgaming demo runs on this page with play money: no download, no account and no deposit.
Is there a best time to play 108 Heroes?
No. Every spin is decided by a certified random number generator and is independent of the time, the day and earlier spins. The 96.56% RTP is a long-run average, not a schedule.
Who makes 108 Heroes?
108 Heroes is made by Microgaming. Every Microgaming game in the catalogue is listed on the studio’s page.
How much does 108 Heroes cost per $1,000 wagered?
On average about $34 at 96.56% RTP. This is a long-run average, not a prediction for a session.
Where does the data on 108 Heroes come from?
The RTP, volatility, max win and release details come from the Slot RTP Database by toolsgambling.com (CC BY 4.0), which links each row to the studio’s own page. It was last verified on 2026-09-28.