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H2O — Water (Battle Currency)

One-line pitch: H2O is the water you earn from winning battles in WAR. It's the game's main "loot" currency.

What this is

H2O is an ERC-20 token with the symbol 水 (Chinese for "water"). You earn it by beating high-scores at positions in WAR. It's not bought, not staked — it drops as a battle reward.

The supply is managed by WAR: when you win, WAR calls Mint(YourAddress, Amount) and your wallet balance goes up.

There's also an overflow protection rule: you can't hoard unlimited H2O. If your balance gets too large, excess is diverted to WORLD (funding territory rewards) or burned.

If you've played a web3 game before

  • Closest analogy: loot tokens from a P2E game — earned through gameplay, not bought.
  • Or: experience points with a hard cap — past a certain amount, the overflow spills somewhere useful.
  • Or: MOBA gold — generated by winning engagements, spent on upgrades.
Dysnomia term What it maps to
H2O (水) Battle-reward ERC-20
Mint WAR calls this when you win; you can't call it yourself
Balance Your wallet's H2O count
Overflow Auto-spill mechanism — too-large balance leaks to WORLD or burns

What you actually do with it

  • Fight battles in WAR to earn it.
  • Hold it as your visible "wins trophy." It's the proof-of-competitive-activity currency.
  • Transfer / trade like any ERC-20 — it's standard.
  • Don't try to Mint — only WAR can. Calling Mint from your wallet will revert.

Rewards / costs

  • Cost: none (aside from the cost of earning it via WAR).
  • Reward: H2O is itself the reward.

Requirements & gating

  • To earn: win at WAR. No other path.
  • To transfer / receive: nothing special, it's a standard ERC-20.

Where it connects

Minted by WAR. Spills over into WORLD when balances get too fat. Referenced in CHEON reward calculations and in YUE bank accounting.

Quick FAQ

Q: Can I buy H2O on an exchange? A: Potentially, if someone lists it, but the canonical source is winning battles. It's designed as an earned currency.

Q: What triggers the overflow? A: A threshold on your balance. When WAR tries to mint to an already-large holder, the extra is routed elsewhere.

Q: Is H2O deflationary? A: Partially — overflow can burn it. But WAR wins mint new H2O, so net supply drifts with gameplay volume.

Q: Can I lose H2O I already earned? A: Not passively. You can transfer it away, but WAR can't take it back. (Overflow only affects new mints, not existing balance.)

Want the Solidity? The contract reference lives at technical/docs/domain/assets/H2O.md.