Skip to the set
Bigbonk Studio

Sc. 04

Bonk Box

A round costs 30 coins. The nine prizes are shuffled into the holes and sealed before you choose, then you bonk three holes and keep what they hide. It is pure chance, not a test of skill.

A plasticine box with nine round holes and a chunky wooden-looking clay mallet
Nine holes. Three bonks. No peeking.

The bonk box

Join

Price of a round: 30 · Bonks left: 0

Start a round, then bonk any three holes.

How it pays

Every round uses the same nine prizes. Each bonk is worth 10 coins times the multiplier in that hole, and your three bonks are added together. The prizes are shuffled into the holes the moment you start the round, before you pick anything, and they do not move afterwards. Because every set of three holes is equally likely to hold any three of the prizes, there is no clever choice: it is a game of chance.

The nine prizes in every round
Hole prizeCoins for that bonkHoles with it
0×02 of 9
0.2×21 of 9
0.4×41 of 9
0.6×61 of 9
0.8×81 of 9
1.2×121 of 9
1.6×161 of 9
3.6×361 of 9

Average return: 93.33%, calculated exactly. There are 84 ways to pick three of the nine holes, all equally likely. Across them the average prize is 28.00 coins for a 30-coin round, and 28.00 / 30 = 0.933333.

Before the cameras roll: are you 18 or over?

Bigbonk Studio is a free social casino for adults. Every game uses virtual coins that have no monetary value and can never be bought or withdrawn.

Get on the call sheet

Pick a nickname and we will put 1,000 coins in your tin. No email, no password, nothing to buy.

Your nickname and coins stay in this browser only. See the storage policy.

Your call sheet

Nickname
In the tin
coins
Rounds played
0
Daily top-up

Signing out wipes your nickname and coins from this browser. Coins are virtual and have no monetary value.