Megaquarium slot by Realtime Gaming (RTG)

Learning how to play Megaquarium takes about a minute: choose a stake, start the spin and read what the reels leave behind. The stake can be changed between spins at any point, and every Megaquarium payout moves with it.

To read a result in Megaquarium, follow the 50 lines from the leftmost reel: the pay is for identical symbols in an unbroken run, and each line pays its best combination only.

The full table of payouts sits in the Megaquarium menu, and it is worth opening before the first round rather than after a result that looks wrong: it lists every symbol, the entry for Aquarium Wild, and the conditions each one needs.

Mechanically Megaquarium is 5 reels, 3 rows and 50 paylines, which puts it either side of the RTG norm. The ray is the top symbol, a seahorse sits under it, and the card ranks below those are what most Megaquarium spins return.

The wild here is Aquarium Wild — a shoal turns the positions it crosses wild. That is the single most important line in the Megaquarium paytable, because it is what turns a near miss into a paid line. The maximum quoted for Megaquarium is 3,000× the total bet, and that figure is reached through the features rather than on a base spin — worth knowing before you judge the game by its first fifty spins.

Free Games is the part of the paytable to read twice: up to twenty-five spins under a multiplier. So the honest way to read Megaquarium is as two games stacked: the base grid, which ticks over, and the feature, which does not.

Megaquarium carries three features, and they are where the game earns its place in the lobby rather than on the base grid.

Aquarium Wild. The paytable entry reads: a shoal turns the positions it crosses wild. Aquarium Wild is the part of Megaquarium most worth having a balance left for.

Free Games: up to twenty-five spins under a multiplier, on the 5-reel grid described above. On Megaquarium this is the difference between a flat session and one you remember, so it is worth knowing what Free Games looks like before it arrives.

Tank Bonus (pick a tank for a payout). Everything else Megaquarium does on the base grid is a preamble to Tank Bonus.

None of these fire on demand, and that is the point: Aquarium Wild is worth having a balance left for, and the rest of Megaquarium is the wait.

A spin on Megaquarium costs the line bet multiplied by 50 lines. Halving the line bet halves the Megaquarium spin and every number in its paytable at the same time — the two move together. The maximum of Megaquarium is quoted as a multiple for exactly this reason (3,000× the total bet): it scales with your stake instead of being a fixed sum, so it means the same thing at any bet size.

Megaquarium runs medium volatility — the game pays often enough to keep a session moving and hard enough now and then to be worth the wait. There is no such thing as the RTP of Megaquarium. RTG supplies a configurable return and each operator picks a setting, which makes cross-site comparisons of this number meaningless — check the info panel inside Megaquarium rather than a table on someone else's site.

Raising or lowering the stake mid-session leaves no memory behind in Megaquarium: it settles each spin independently, and a run of losses does not make the next one better priced. If you autoplay Megaquarium, set it to break on Aquarium Wild — the one moment in the game you want to be watching.

Size the stake on Megaquarium so the balance covers a few hundred spins — that is roughly the window in which the game shows you what it does. A limit set before Megaquarium loads is worth more than one set at the end of a losing run; the tools for it are in your account.

Bonus play on Megaquarium is straightforward: slots clear wagering at 100%, and the detail is on the bonus page. What to watch in Megaquarium is Aquarium Wild: how often it arrives sets the pace of a session more than any other number.

One thing not to do with Megaquarium is chase Aquarium Wild by raising the stake after a dry run: its trigger frequency does not change with bet size, only the cost of waiting does. The responsible gaming page collects the limit tools and the independent support contacts in one place, and they apply to Megaquarium as to every other game here.

In short: Megaquarium is for a game that pays often enough to stay interesting without flattening out. It sits in our lobby alongside Fishy Business Mega Cascade, which shares the corner of the catalogue and differs in pace.

Put Megaquarium beside Fishy Business Mega Cascade and the shared parts fall away quickly. Start with Megaquarium if you want a game that keeps showing you something. Full specifications for Megaquarium — the 5 reels, 3 rows and 50 paylines, volatility, the top end (3,000× the total bet), the feature list and the release year — are in the table at the top of this page.

Fishy Business Mega Cascade