the gacha desk

The odds, solved. And the other side of the table.

The gacha’s back room: check any pool’s odds, or stock a pool and earn its fees. Just here to play? The spin is over there.

reading… reading this page's config

The Book: the odds, before anyone pays

Describe any pool, real or not, and see its exact odds, worked out the way the contract does it.

the backings in the pool, comma separated, in ETH

what one is worth to you, in ETH (optional)
surcharge bps standing bid bps of backing

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a pull costs

the pool's harmonic mean, plus the surcharge

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expected backing drawn

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chance a pull profits instantly

the standing bid alone beats the price

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what a floor-only player loses

per pull, on average, if you never keep one

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break-even valuation

want one more than this and a pull stops losing

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positions in the pool

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every position, and exactly how often it is drawn

solve a pool to see the odds

Cheap positions are drawn often, rich ones rarely. Each has the same expected exposure per draw, so fees are split equally.

the other side of the table: what a depositor gets

A pull has a deadline

A pull takes two steps. The buyer pays, then a new block decides which position they drew, and someone must settle it. If nobody settles inside the window, the fee goes to the depositors and the buyer gets nothing.

The machine page settles while its tab is open, our server backs it up, and anyone can settle any draw.

step	who acts	when
1 · request	the buyer, in their wallet	the fee is held and the reveal block is fixed
2 · the reveal	nobody: the chain	— after the request
3 · settle	anyone, including the spin page	within —, or the fee is forfeited
4 · keep or take the bid	the buyer, in their wallet	—, unless they decided up front

The pools

Pick a pool to load it into the Book above and the deposit form below.

reading…

Put one up

You lock up a token plus the ETH that backs it. Your backing funds the standing bid: whoever draws your token can hand it back to you for a set share of it.

Low backings get drawn most often, and your token can be drawn early, before it earns much in fees.

No gacha contract is set for this page, so deposits are off. The Book above still works.

Every pool has a minimum backing, so one tiny deposit can’t drag its price down.

Your side of it

Payouts wait for you to claim them.

No gacha contract is set for this page, so there’s nothing to read or claim.

Ask for one

Anyone can ask for any collection on this chain, no wallet needed. An ask is answered when a pool exists for it; until then it’s waiting, not rejected.

An ask needs an ERC-721 contract with enough holders to rule out spam.

what has been asked for