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Frog RushProvably fair HTML5 casino game with cash-out

Frog Rush is a hop-and-cash-out HTML5 casino game: every hop raises the multiplier, one wrong hop ends the round. Four paths with different risk, the same RTP on all of them, and every outcome provably fair, verifiable by the player.

18+ · The demo uses play money only

96.4–97%

RTP on every path, stake and cash-out point

up to 2,063.01×

top multiplier, on the Storm path

4

paths, from low to extreme risk

10 million

simulated rounds per strategy

Inside Frog Rush: the four paths

Frog Rush, Forest path: the frog hopping across a night-time forest pond with lily pads and fireflies
Forest · low risk

Every hop pays more.

The multiplier climbs with every lily pad. Cashing out or hopping again is always the player's call.

Frog Rush, River path: the frog mid-hop between lily pads on a river with snowy mountains behind
River · medium risk

Same game, different pace.

Each path has its own safe-hop chance, from 93% down to 60%, and its own scenery.

Frog Rush, Lava path: stones on a lava lake between two volcanoes, with an eruption on one of the stones
Lava · high risk

One wrong hop and it's over.

Four different loss animations: the sinking pad, the crocodile, the eruption and the lightning strike.

Frog Rush, Storm path: a coin shower over the frog on a stormy night
Storm · extreme risk

Up to 2,063.01×.

The riskiest path carries the highest multiplier. A coin shower marks the big wins.

Frog Rush, River path: the frog on a lily pad with the next multiplier (1.57×) highlighted
Provably fair

Verifiable, round by round.

The server commits to its seed (SHA-256) before the bet; with the player's seed, the outcome is fixed when the round starts and can be confirmed afterwards.

Four paths

Four paths, the same 96.4–97% RTP.

The paths differ only in volatility: safe-hop chance, number of hops and top multiplier. RTP stays between 96.4% and 97% on all of them.

Frog Rush, Forest path: the frog hopping across a night-time forest pond with lily pads and fireflies
ForestLow risk

93%

safe hop

30

hops

8.55×

1.04× → 8.55×

reach the last pad: 1 in 9

Frog Rush, River path: the frog mid-hop between lily pads on a river with snowy mountains behind
RiverMedium risk

85%

safe hop

25

hops

56.40×

1.14× → 56.40×

reach the last pad: 1 in 58

Frog Rush, Lava path: stones on a lava lake between two volcanoes, with an eruption on one of the stones
LavaHigh risk

75%

safe hop

20

hops

305.87×

1.29× → 305.87×

reach the last pad: 1 in 315

Frog Rush, Storm path: a coin shower over the frog on a stormy night
StormExtreme risk

60%

safe hop

15

hops

2,063.01×

1.61× → 2,063.01×

reach the last pad: 1 in 2,127

How it plays

Three decisions, seconds per round.

01

Bet and pick a path

€0.10 to €100 in the demo (operator-configurable). Forest, River, Lava or Storm.

02

Hop or cash out

Each safe hop raises the multiplier. Cashing out pays bet × multiplier, always more than the stake.

03

Or let auto decide

Auto cash-out stops on the hop you choose, and you can stop it at any moment.

Provably fair

Provably fair: the outcome is fixed when the round starts.

Neither the player nor the server can change the outcome once the round starts — and the game's own Provably fair panel checks every round.

1

Commitment

Before the bet, the server shows the SHA-256 of a 256-bit seed.

2

Player seed

Only then does the player's device create the client seed, which the server can't know in advance.

3

HMAC-SHA256

Every hop comes from HMAC-SHA256(seed, client seed:nonce:cursor), with no modulo bias.

4

Verification

At the end the seed is revealed and the game checks the hash, the result and the payout.

// every hop

float = HMAC-SHA256(serverSeed,

clientSeed + ":" + nonce + ":" + cursor)

safe = float < p // p = 0.93 · 0.85 · 0.75 · 0.60

// commitment before the bet

commitment = SHA-256(serverSeed)

  • 10 million rounds per strategy, in Monte Carlo simulation
  • 1 billion RNG values tested one by one
  • 323 automated tests, all passing
  • Full math sheet: RTP, volatility and protocol
Demo

Play the Frog Rush demo (play money).

The full demo runs on this page. It starts with €1,000 of play money, no sign-up. You can switch the language and currency in the game’s rules.

frogrush-vexifystudio-game.netlify.app
18+ · The demo uses play money onlyOpen the demo in a new tab
For studios and publishers

Frog Rush for licensing or acquisition.

We are looking for a studio, publisher or operator that wants to license or acquire the game and handle certification and distribution. We deliver it ready to integrate.

01

HTML5 Canvas 2D, no frameworks or heavy images: about 270 KB per player (80 KB gzipped)

02

7 languages (EN, PT, PT-BR, ES, FR, DE, IT) and any currency, picked by the operator in the launch URL

03

Game logic and RNG kept apart from rendering, ready to run on your RGS

04

Embeds in an iframe (the game already allows it)

05

Math sheet and simulation results

06

Source code available to interested parties

07

Not certified yet: certification sits with the distributor

FAQ

What people ask about Frog Rush.

Does Frog Rush pay real money?

No. The demo uses play money only. For real money the game must be certified and integrated by a licensed operator.

What is Frog Rush's RTP?

Between 96.4% and 97% on every path, stake and cash-out point. No cash-out strategy changes the return.

What does provably fair mean here?

The server commits to its seed (SHA-256) before the bet; together with a seed created by the player, each round's outcome is fixed when the round starts and can be confirmed afterwards in the game's Provably fair panel.

Is the game certified?

Not yet. Certification by an independent lab sits with the studio or publisher that licenses the game.

Can I have Frog Rush on my platform?

Yes. The game is available for licensing or acquisition by studios, publishers and operators. Get in touch.

Can I buy the Frog Rush source code?

Frog Rush is available for licensing or acquisition, on terms agreed case by case: the source code, the math sheet and the simulation results exist and can be part of the deal. It is not certified yet: certification sits with the distributor.

Which languages and currencies does Frog Rush support?

7 languages (English, European and Brazilian Portuguese, Spanish, French, German and Italian) and any ISO currency, including ones without cents such as the yen. The casino picks the language, currency and bet limits in the game’s launch URL.

What kind of game is Frog Rush?

An HTML5 instant casino game with hops and cash-out: the player decides when to take the multiplier.

Responsible gaming: 18+. The demo uses play money only and takes no real bets.

Want Frog Rush on your platform?

It is available for licensing or acquisition. We reply in writing with the math sheet, the simulation results and the next steps.