All players automatically participate in the Gold Coin JACKPOT
The Gold Coin JACKPOT is a progressive jackpot with four tiers (Mini, Minor, Major, Grand) that grow with every jackpot contribution made by players.
There is no max win limit for any of the jackpot tiers and they always start with the following minimum seeds:

GC Mini - 10,000 Gold Coins

GC Minor - 200,000 Gold Coins

GC Major - 2,000,000 Gold Coins

GC GRAND - 200,000,000 Gold Coins

By playing any game available on McLuck, players agree to contribute to the jackpot in addition to their in the game spin.
The jackpot contribution will be taken from their Gold Coin balance each time they spin on a game round, as long as they have Gold Coins available.
The fixed jackpot contribution per game round is 0.5% of the Gold Coins balance or 100 Gold Coins (whatever is higher), regardless of the amount played in the game spin, and is distributed as follows:

2.5% of jackpot contribution to current GC Mini jackpot

5% of jackpot contribution to current GC Minor jackpot

10% of jackpot contribution to current GC Major jackpot

15% of jackpot contribution to current GC GRAND jackpot

17.5% of jackpot contribution to seed new GC Mini jackpot, GC Minor jackpot, GC Major jackpot and GC GRAND jackpot

The effective Gold Coin RTP of the JACKPOT promotion is 50%.
The JACKPOT can randdomly trigger at any point in a game round and players will see a jackpot animation that determines the jackpot tier won.
JACKPOT winnings will automatically be added to the player's Gold Coin balance.
All progressive jackpot wins are subject to verification by McLuck and the software provider, and all decisions are final.
An onscreen pop-up is not determinative of the jackpot win value as it is subject to verification as set up above. The jackpot win once determined will be added to your balance.
In the unlikely event of two players hitting the same jackpot tier at similar times, the second player will win the newly seeded jackpot, which may be lower than the amount displayed on the site.
If there is a disconnection between McLuck and the jackpot server, there will be no jackpot contributions charged and players won't be able to win any of the jackpot tiers. The jackpot amounts will remain the same as they were at the time of disconnection. The jackpot will resume once the connection to the server is restored.
The Gold Coin Jackpots are an integral feature of the McLuck Service and do not have an opt out.