Mad Scientist: Breaking Beakers Hold & Win slot review

Beakers, bubbling flasks and ten lines

A mad scientist and his lab equipment set the tone. The mechanics are straightforward: five reels, ten fixed lines, and payouts when matching symbols connect along a line. Wilds are listed to help finish those lines.

The words Hold & Win in the title suggest a round of that type. We have no description of how it runs, so read the in-game rules for the details.

Where 96.14% and medium risk leave you

Subtracting 96.14 from 100 gives the casino's 3.86% average margin. It is the result of millions of spins pooled together, and a single outing can land far from it; the RTP explained guide expands on that.

Medium volatility falls between frequent small returns and infrequent big ones, so both good and bad runs are normal. See the slot volatility guide for how the labels compare. Operators sometimes choose a different RTP version, so the number in the game's help screen is the one that counts.

Free spins, wilds and paying to enter

Free spins and wilds are the standard extras. With the buy option, a player pays a multiple of the stake to start the feature at once. Nothing published says what a bought round pays on average beyond the game's overall RTP, so it is no route to better results. Betsoft's catalogue also holds Coins of Ra Deluxe and Golden Dragon Inferno; see more Betsoft slots.

Who it suits

A fit for adults who enjoy a quirky science theme and moderate swings without many lines. Repeated purchases of the bonus drain a balance quicker than normal spins, so name a stake ceiling beforehand. For ages 18 and up.