Dr Enlarge-O Slot Review

Where to play Dr Enlarge-O for real money

Basis of this table: the welcome offer each brand publishes for new UK accounts. It is not a list of casinos carrying this game — Lobbies change without notice: check the game is in the operator’s own lobby before you deposit for it.

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Show all 8 casinos

Last updated October 7, 2026 · Every brand listed here holds a current UK Gambling Commission licence; the licence holder and account number are printed on the brand’s own row.

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But will you come up with a formula to enlarge your cash stash? Here’s a review of Dr Enlarge-O by Novomatic with everything you need to know.

Quirky Appeal

Dr Enlarge-O – whose name might sound saucy but is nothing of the sort! – runs a laboratory like no other. All kinds of crazy experiments take place here and you never quite know what you will see.

Test tubes full of freaky coloured liquid, miniature monsters and all kinds of odd instruments and tools await you on the reels, surrounded by spotlights and flickers of electricity during play.

The graphics are 2D and cartoonish, so they’ll never win any awards for gritty realism but there’s a fun appeal to them which is undeniable. And when you do land a win, there’s a short animated sequence which is different for each symbol which can be entertaining to watch!

Monster Magic

The monsters on the reels may seem just like another symbol but they’re far more than a cute and quirky design. If you land one of these little blighters, then watch out as a laser will be shot across the reels! This laser may sound dangerous but it’s just friendly fire… If the laser hits another monster, it will transform it into an expanding wild.

This expanding wild will then stretch to cover the entire reel it’s on, giving you many more chances to win on that turn. Any monster which isn’t hit by a laser will just turn into a regular wild.

A Little Extra Help

Of course you can win simply by matching up the symbols but Novomatic have included a few little extras that can make it easier for you to grab a prize or two.

As well as the special monster wilds described above, Dr Enlarge-O also has regular wilds which can substitute for the other symbols. These are usually only found on reels 2, 3 or 4.

There’s also the scatter symbol which you can spot on reels 1, 3 and 5. If you land three of them in a single spin, you’ll trigger the bonus which gives you 10 free spins.

During these free games, you’ll be given a minimum of one monster on the reels each time and at least one will be struck by the laser.

You won’t be able to retrigger the free games during these spins so make the most of what you get.

If you like the feature of the expanding wilds on your free spins, then you could also take a look at Black Knight II from WMS. This has a similar feature on the central reels where the expanding knights also act as sticky wilds too.

Know Your Facts

Statistics suggest that Dr Enlarge-O is a game with medium volatility, but with the coin value starting at just 0.01 it’s possible to bet on all 25 paylines for just 0.25 per spin.

If you’ve got deeper pockets, you can increase the coin value up to 50.00 per line; this gives a total max bet of 1,250.00.

There’s also the standard Gamble feature if you’re willing to take a risk and take the chance of losing your prize completely! You can double your money in a simple game of chance where all you have to do is guess whether the card will be red or black. This is the standard Gamble feature that you’ll find on many of the Novomatic games but a few little extra design touches have been added to the images to make it more specific to the Dr Enlarge-O slot.

Laboratory of Fun

Dr Enlarge-O by Novomatic is an online video slot which has an original theme which is colourful and full of caracters, making it appealing to play. It’s a bit light on bonuses, and there’s no progressive jackpot either, but the expanding wilds provide the chance of getting a seriously big win if you’re patient enough to wait. Great for newbie and intermediate players but not likely to hold the attention of those looking for the really high variance slots.