Open a portal.
Pull ten cards.
Every card is a multiplier on what it cost. Every payout is minted rather than paid from a bankroll, so the house holds nothing and cannot be broken.
Live simulation using the exact probability table from the contract. No wallet, no chain, nothing at stake.
The product
What Fortuna is, what a portal costs, what each card returns, and where the ETH goes.
Ten cards, best last
One Chainlink request draws all ten at once. The order they are shown in is a design choice, so cards reveal ascending and the final flip is always the best one in the portal.
Press open above to draw a portal.
The ladder is the emission schedule
Nine outcomes, fixed in the contract and enforced on every draw. Select any rung to drive the portal above.
Gold is reserved. If the portal burns gold, something rare landed. Every card also carries an independent one in fifty thousand jackpot draw, uncorrelated with its multiplier, so a bulk common can take the whole pot.
Nine outcomes, nine cards
The ladder runs from ruin to structure to the goddess's own emblems. Fragments become a column, a column becomes a doorway, the doorway becomes a finished arch. Above that it stops being architecture and becomes Fortuna herself.
Value shown is what each card returns on a 0.04 ETH card in a ten card portal. The 100x is the Rota Fortunae, the wheel this protocol is named for, and it lands once in ten thousand cards.
Published because they are enforced
Card games ask you to trust their stated rates. These are in the contract, checkable per draw, and pinned by a test that fails if the table stops summing to ten thousand basis points.
| Pull | Rate | Value on a 0.04 card | Band |
|---|
Return to player is 80.125% on the token side before the jackpot. Under review: the contract stays deflationary up to roughly 89%, so there is headroom to raise it.
Minted, not paid out
A casino holds a bankroll and pays you from it, which is why variance can break one. Fortuna creates new supply against a capped schedule instead, so there is no bank to empty and nobody on the other side of your card.
- 7.5% streamed to stakers as ETH
- 90% buys FORTUNA and burns it
- 2.5% to the protocol
- 1% taken first, into the jackpot
- The wheel holds no bankroll
- Payouts are newly minted supply
- Per card emission capped at 5% of pool
- Daily emission capped at 20%
- Buyback ETH stays as permanent depth
- Pool liquidity only ever grows
- Burns exceed emission below 89% RTP
- Every figure readable on chain
The brand
Marks, colour, type, character and the rules that govern them. This is the reference an illustrator or a generation model should work from.
Logomark and wordmark
An arch with a four point star cut into it. The same star sits in the O of the wordmark, and the terminal A resolves as the arch. Drawn in 2024 and unchanged.
Solid
Stroke
Gradient
White on Ink
Purple on Rose
Rose on InkClear space on every side equals the width of the A. Minimum 120px wide on screen, 40mm in print. Never angled, stretched, shadowed, recoloured outside the palette, or given a descriptor lockup.
Three jobs, one palette
Ground recedes, structure carries the interface, signal is spent once.
Degular, set to the 2024 spec
Auspex
In ancient Roman belief the auspex read the flight of birds to decide whether an undertaking was favoured. The practice was augury, the signs were auspices, and the word auspicious descends from it. Reading birds for an outcome is the oldest instrument for exactly what this product does.
The eye is gold, the single exception to the win-only rule, because Auspex sees the outcome before you do. Everything else sits in the house gradient of Rose falling through Purple into Persian Blue. It replaces the 2024 rabbit, which was a borrowed folk symbol that did nothing.
No casino furniture
PEGI rewrote its criteria in 2024 so gambling themes no longer trigger an adult rating. What does is simulating a casino. That makes this a constraint rather than a preference.
- Felt, chips, card suits, dice
- Slot chrome, reels, levers, bells
- Dealers, tables, pit furniture
- Neon, Vegas signage, cash
- Arches, columns, thresholds
- Coinage as classical object
- Celestial marks and the four point star
- Landscape at dusk, water, ruins
Social
The existing covers. The rabbit silhouetted in the arch is retired, so both scenes need the star or Auspex in its place.
Tell them the truth and let it be exciting
Generation brief
Everything below is written to be pasted into an image or video model. It exists so that anything generated later lands inside the same world rather than beside it.
Paste this in front of every prompt
This paragraph produced the portal scenes, the nine cards and the Auspex renders on this page. Keeping it verbatim is what makes new work match old work.
Flat vector illustration. Very smooth long gradients, minimal shading, no rendered detail, no outlines, no texture, subtle fine grain. Clean geometric edges. Generous negative space. Calm dreamlike dusk palette, soft lavender and purple. Deep ink background. No text, no letters, no numbers, no signage, no watermarks.
Name the hexes explicitly
Models drift toward generic purple unless the values are stated. Always list the ones the asset actually needs, and never introduce a colour outside this set.
Palette strictly limited to: #16020C night #1E1A35 ink #3639A8 persian blue #4E54CD iris #815ED3 purple #FAD9FF rose #EBE0EF dusk #E0C32A gold #C02667 pink Gold appears only on a win. Pink is for skies and horizons only.
What must never appear
The first three lines are a compliance boundary, not a taste preference. PEGI reserves adult ratings for products that simulate a casino, so nothing here may furnish one.
Negative: casino, slot machine, reels, levers, jackpot bell, felt table, playing cards, card suits, poker chips, dice, roulette wheel, dealer, croupier, neon signage, Vegas, cash, banknotes, rabbit, bunny, photorealism, 3D render, heavy texture, drop shadows, outlines, lens flare, text, letters, numbers, watermark.
The world is made of these
- Rounded arch, plain cylindrical columns
- Banded capitals, stepped plinths
- Keystone at the crown
- Broken columns in the far distance
- Shallow steps, thresholds
- Still reflective water
- Flat layered mountain ridges
- Large pale moon, crescent
- Dusk sky, lavender into rose
- Tiny four point sparkles
- Simple coins, floating and stacked
- The four point star
- Cornucopia, rudder, globe
- The spoked wheel
- Auspex, the corvid
Assets still needed
Each of these is written so it can be run without further context. The covers are the priority, because both currently show the retired rabbit.
| Asset | Format | Brief |
|---|---|---|
| Cover, dusk | 3:1 | Rework of the existing dusk cover with Auspex perched in the arch where the rabbit was. Everything else unchanged. |
| Cover, daylight | 3:1 | Same rework on the pale daylight cover. Auspex reads darker against the lighter sky. |
| Portal, five states | 3:4 | The arch on water, star inside, at each tier. Only the light changes between them: iris, purple, rose, gold, white gold. |
| Auspex, in world | 3:2 | The corvid inside the environment rather than on a plain ground. Perched on the arch, on a broken column, over the water. |
| Loop, portal idle | video 9:16 | Locked camera on the arch. Light breathes, motes drift up, water moves slightly. No camera movement, seamless loop. |
| Loop, coin fall | video 9:16 | Coins tumbling slowly past camera against the dusk scene. For win moments and social. |
Status
What is built, what is being built, and what is still required before anything reaches mainnet.