
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.
Basic information
| Software | Microgaming |
|---|---|
| Release year | Not published |
| RTP | 96.56% |
| Volatility | Low |
| Max win | Not published |
| Hit frequency | Not published |
| Game type | Slot |
| Data verified | 2026-09-28 |
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.
Slots like 108 Heroes
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
| Bet | Wagered | Average 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
- 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.












