Terms and Conditions
The 138.com Welcome bonus currently consists of a bonus of 100% up to £100 plus 25 complimentary spins on Viking Gods - Thor and Loki
The minimum deposit that will trigger the bonus is £20.
This bonus has a wagering requirement of 35xbonus for the deposit bonus and 20xwinnings for the complimentary spins.
The bonus uses a standard structure where the full balance is locked from the moment of deposit until the wagering requirement has been completed.
There is no maximum bet.
There is no maximum win on the deposit bonus and £500 for the complimentary spins.
The bonus is sticky, meaning that once you've completed the wagering requirements it will be removed from your account at the point of your first withdrawal.
Only players depositing via Credit or Debit card are eligible to receive this bonus.
Bonus and associated winnings expire after 14 days if wagering requirements are not completed.
- Slots (all varieties) 100%
- Roulette (all varieties) 25%
- Blackjack (all varieties) 20%
- All Live Casino & Other 0%
- Scrooge, Castle Builder, Castle Builder 2, Tomb Raider Secret of the Sword, Untamed Bengal Tiger, Untamed Wolf Pack, Untamed Crowned Eagle, Untamed Giant Panda, Peek-a-boo, Stardust, Forsaken Kingdom, Beautiful Bones, Ho Ho Ho, High Society, Gold Factory, Shoot 0%
Available to newly registered players only.
Every effort is made to ensure these terms are accurate and up-to-date, however we accept no responsibility for inaccuracies or errors. It is your responsibility to ensure that you confirm the terms of any promotion you accept with the operators website before you play.
Our review will provide a value for Low Rollers, Mid Rollers and High Rollers. Each category will use the same slots game (Thunderstruck) for accurate comparison.
Low Rollers will use the minimum possible bet size (£0.09/spin) and a low deposit value of £30.
Mid Rollers will use an average player bet size (£0.54/spin) and an average deposit value of £50.
High Rollers will use a player bet size (£4.95/spin) and a deposit value of £100.
Super High Rollers will use a player bet size (£9.99/spin) and a deposit value of £100.
The value of the complimentary spins will be assessed first and added on to the value of the bonus at the end of simulation.
Complimentary Spins have to be assessed in two steps. Firstly the average win for the Complimentary Spins have to be established and secondly the wagering requirement has to be assessed for that average win to find how much the player will be left with on average.
In the case of the 138.com complimentary spins we have 25 complimentary spins on Viking Gods - Thor and Loki with a value of £0.15/spin. That’s a total of 25x0.15 = £3.75 of wagers. The average win from the complimentary spins will simply be the total wagers multiplied by the RTP. So 3.75x0.953 = £3.57.
We then take the £3.57 win and assess the impact of the wagering requirement. The wagering requirement will be 3.57x20 = £71.40. We then conduct the following simulations for Low, Mid and High Roller play:
Free spin value is £2.65.
Free spin value is £3.02.
Free spin value is £2.91.
The structure of the 138.com Casino bonus is of the straightforward kind where bonus terms apply from the moment of deposit. This makes for a very straight forward simulation that requires only one step.
Low Roller Bonus
Using a deposit of £30 with a bonus of £30, with a wagering requirement of 30x35 = £1050 and a bet size of £0.09/spin we get the following results:
So the value of the bonus is -£11.77.
Adding the value of the free spins we get -£11.77 + £2.65 = -£9.12.
Mid Roller Bonus
Using a deposit of £50 with a bonus of £50, with a wagering requirement of 50x35 = £1750 and a bet size of £0.54/spin we get the following results:
So the value of the bonus is -£0.93.
Adding the value of the free spins we get -£0.93 + £3.02 = £2.09.
High Roller Bonus
Using a deposit of £100 with a bonus of £100, with a wagering requirement of 100x35 = £3500 and a bet size of £4.95/spin we get the following results:
So the value of the bonus is £35.82.
Adding the value of the free spins we get £35.82 + £2.91 = £38.73.
Super High Roller Bonus
Using a deposit of £100 with a bonus of £100, with a wagering requirement of 100x35 = £3500 and a bet size of £9.99/spin we get the following results:
So the value of the bonus is £48.98.
Adding the value of the free spins we get £48.98 + £2.91 = £51.89.