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Chain mail slot from Microgaming

Chain Mail slotCountless tales have used the following elements in all kinds of variations: A beautiful princess, a valorous prince, and a tall tower. Microgaming put the Chain Mail slot machine (2015) in the mix and left the plot up to the player's imagination. Was the prince the 10th person who received a chain mail letter with the request to go and rescue the princess? Was the crazy medieval mailbox chained to a tree?

Did somebody send a text message to the princess’s cellphone, announcing the heroic rescue? It doesn’t really matter. All you have to do is spin the reels of this 20 pay lines feel-good slot, enjoying the visuals and the cheerful sound effects, hoping to hit the Free Spins or the maximum win of 120 000 coins.  We advise you to try the Thunderstruck Wild Lightning slot by Microgaming for free.

This slot has Medium Volatility with an RTP of 95.09%. The RTP doesn't allow obtaining a positive mathematical expectation of winning in the casino. Check it out for free in the DEMO version on our page. No registration is required.

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Personal testers’ opinion about Chain mail slot

First of all, to clear this up, there are 2 versions of the game. 

  • N: 1 is with the regular card symbols: A, K, Q, J, and 10. 
  • N: 2 is with junk food (for binge eating) symbols: chocolate bar, royal ice cream cone, grill skewers, chicken nuggets, and a sliced pizza. 

Although they have the same number of win lines, the paytable is different, including the Wild and the Scatter symbols. This article will be reviewing only the first variant (N: 1) of the game. 

Even though the Chain Mail slot machine seems to have a generous paytable, it’s actually not so profitable once you make your first 100-200 spins. During testing, there were some sessions with way too many dead spins, some of which were compensated when we almost gave up hope. The slot doesn’t balance well, mostly because the regular wins are only with the low-value symbols. According to statistics, the hit probability is 31.34% in the usual spins, and the Castle Bonus round is triggered, according to statistics, every 172nd spin (0.58%). In this slot, just 18% of the prize pool is reserved for the Bonus payment. During multiple test sessions, our most significant win was 59x the total bet in the main game and 46x the bet in the Castle Bonus feature. This slot is in the middle line for wagering, with 5.6 (out of 10) points. According to many casino specialists and us, you can try to complete the requirements on the bonus money here, but there are other more suitable slots for that.

Hidden parameters and settings of Chain Mail slot (data from the testing team)

  • The frequency of triggering the bonus is statistically, every 172nd spin (0,58%).
  • The probability of a hit (any winning) is 31,34%.
  • The distribution of the winnings is 82% in the usual spins and 18% in the bonus feature.
  • The maximum payout during the tests was 59x.
  • The average winning from the bonus was 46x.
  • Volatility is 5,06 out of 20 (from low to average).
  • Cycle length is from short to average.
  • The rating of the slot machine for the wagering is 5.6 out of 10.
  • RTP of 95.09% does not allow getting a positive mathematical expectation at the casino.


  • Chain MailWild - Most profitable symbol, 50 000 coins for 5OAK, substitutes for all other symbols, except Scatters. All wins, including the Wild, are doubled.
  • B-Bonus Scatter symbol - is paid, 10 000 coins for 5OAK. Landing 3, 4, or 5 anywhere on the reels will secure the triggering of the Castle Bonus feature. You get to wander around the floors of the castle and pick doors. On each floor, there are 7 doors, and you will have to select 1 per floor. Upon opening either a cash win, 10 Free Spins with x2 multiplier, the Princess or the Angry King will be revealed. 
  • If you discover the Princess, you immediately collect all cash wins on that floor and go up to the next floor. 
  • Naturally, the best option is to open the Free Spins door. You take your win till here and launch the Free Spins mode.
  • Bumping into the Angry King will end the Castle Bonus round abruptly. You are entitled, however, to collect whatever you had found before you ran into the King.


  • Number of reels - 5
  • Number of pay-lines - 20 (always active)
  • Cost of the same coin - from 0.01 to 1.0
  • Number of coins per line - 1-5
  • The range of the size of bets - from 0.20 to 100
  • Maximum winning – 120 000 coins (in the bonus round)
  • Wild symbol - yes (Stamp with a logo of the slot doubles the prizes).
  • Scatter - yes (Fire letter B)
  • Free spins - yes (10 free spins with a multiplier x2 triggered via bonus game).
  • Bonus game - yes (multilevel bonus game will be launched by 3-5 symbols of a scatter).
  • The expected payout percentage of 95.09%

Where to play?

  • Play Chain mail slot at the best gambling site in Canada - Fastpay Casino. They offer over 5300 casino slot games as well as instant and no-hassle payouts. After the first deposit, you will become part of their VIP bonus program for loyal players with 11 levels. Each level will bring new and outstanding prizes for you.

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Written by Kamen Valev
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