ORO

All Oro, 1,000,000,000, is created in a single transaction at the start and goes straight into contracts. Half goes to the staking contract, for Spirits to mine. The rest is split between the Trading House, which holds 450,000,000 to sell, and the prize fund, which holds 50,000,000 for quests and events. No wallet receives any. No contract can create more, and no key exists that could change the split.

A supply created once, with nothing kept back for a person, means the game's makers can never add Oro or hand any to themselves. The split is fixed so that no part can ever be moved from one purpose to another.

Many game coins are created a little at a time for as long as the game runs, and somebody holds the key that sets the pace. Oro has no such key.

Every 14 days the mining pot pays out 2% of what remains, shared among the staked Spirits by tier, a mythic counting nine times a common. Boosts can raise a Spirit's share to at most twice its rate, and the full rules are under Staking. What a Spirit mines is Bound Oro, held for whoever staked it, and it never expires.

Spirits stay in their wallets, so staking moves nothing and asks for no permission over them. The 2% schedule has no end, so mining goes on, a little less each fortnight, and the pot can never be emptied in a rush.

The prize fund holds 50,000,000 Oro in its own contract. It can do two things: grant Bound Oro into a player's game balance, or destroy some of its own. Its limits are written into the contract: no more than 0.5% of the fund can go out in one day, and no player can receive more than 10,000 Oro in one day. The game uses it for quests and events.

With the limits in the contract, nobody can empty the fund in a day, and a stolen key could only hand out Bound Oro slowly until it is replaced. Prize Oro is Bound Oro, so it is spent in the game and never reaches a wallet.

Players buy Oro from the Trading House with USDG, at one price for everyone, and sell any Oro in their wallet back to it at its buy-back price, 80% of the selling price. The split is the same for every payment, and it is written into the contract. When the reserve holds more than its promise needs, the buy-back price can go up. The Trading House sells any Oro it holds, including Oro it has bought back.

The reserve is what lets it promise to buy every Oro back. The promise is checked by the contract after every trade. Its rules were fixed when it was created, and nobody holds a key that could loosen them.

Outside the game, holders can trade Oro with each other in a pool. A guard keeps every trade there between the Trading House's two prices while the Trading House has Oro to sell. The game doesn't use it.

Any item in the game shop takes Oro from mining or from your wallet. Items are priced in dollars, from the Trading House's selling price, so an item costs the same in dollars from one day to the next. A player with Bound Oro from mining and a player with Oro bought from the Trading House get the same goods for it.

Pricing in dollars keeps the shop steady for players from month to month. One shop for Oro, bound or in your wallet, treats a player who mined and a player who bought the same.

Spending in the shop destroys the Oro used, bound or from your wallet. When wallet Oro is destroyed, the USDG that stood behind it is freed, and it stays in the Trading House as reserve. Destroyed Bound Oro frees nothing, because nothing stood behind it.

The shop takes nothing for itself from spent Oro. The game's share was taken once, when the Oro was first sold.

Many game coins send what players spend to a wallet that can sell it again. Spent Oro is destroyed in the same moment.