What is THORChain (RUNE)?
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🟢 The simple version
Plain English — no jargon. Start here.
THORChain is a decentralised cross-chain liquidity protocol that lets you swap native Bitcoin for native Ethereum (or any supported asset) without wrapping, bridging, or centralised exchange — it achieves this through a network of validators and liquidity pools denominated in RUNE, where every asset pair is always paired against RUNE as the intermediary.
The cross-chain swap problem
If you hold Bitcoin and want Ethereum, you traditionally need: a centralised exchange (KYC, custody risk), or a bridge (smart contract risk, often wrapped assets). Swapping BTC for ETH on Uniswap isn't possible — Uniswap only handles Ethereum-native tokens. You'd receive WBTC (wrapped Bitcoin), not native BTC. THORChain enables the real thing: you send native BTC to THORChain's Bitcoin address, the protocol sends native ETH to your Ethereum address. No wrapping, no KYC, no bridge smart contract.
The mechanism: THORChain validators collectively hold cross-chain wallets on every supported chain (Bitcoin, Ethereum, BNB Chain, Avalanche, etc.) using threshold signatures. Liquidity providers deposit native assets paired with RUNE into pools. When you swap BTC for ETH, THORChain's validators route your BTC into the BTC/RUNE pool, RUNE flows to the ETH/RUNE pool, and ETH is sent to you from THORChain's Ethereum wallet. RUNE is the settlement currency — all cross-chain swaps go through RUNE.
The 2021 exploits
THORChain suffered multiple exploits in mid-2021. In June 2021, an attacker exploited a logic error in the ETH router contract to drain ~$140K. In July 2021, a more serious exploit drained ~$8M using a fake ETH token that mimicked a real token in the protocol's accounting. A third $8M exploit followed. Total losses ~$16M. THORChain halted, patched, and repaid affected LPs from reserves. The exploits were significant and are documented history — the protocol has operated without major exploits since.
Is RUNE legal in India?
Yes. RUNE qualifies as a Virtual Digital Asset (VDA) under Indian law. 30% tax on gains and 1% TDS applies. Always consult a tax professional.
🟡 A bit more detail
For when you want to go a little deeper.
RUNE tokenomics — the 3x rule
THORChain has a design rule: for every $1 of external assets in the network's pools, there must be $3 of RUNE (1:3 ratio). This is because each pool is 50% RUNE / 50% external asset — so $1M of BTC requires $1M of RUNE in the BTC/RUNE pool. Plus validators must bond 2x the total pool value in RUNE as security. The result: as more assets flow into THORChain pools, more RUNE is required, creating structural demand. Conversely, if pools lose assets, RUNE is sold, creating reflexive downside. This amplifies both bull and bear cycles for RUNE.
THORChain applications
THORSwap is the primary DEX interface. ASGARDEX is the desktop application. Streaming Swaps allow large trades to be split over multiple blocks to reduce slippage. Savers Vaults let users deposit native assets (BTC, ETH) single-sided and earn yield — the protocol deploys the asset in its AMM pools and shares trading fees. THORFi products (lending) allow borrowing USDT against native BTC or ETH collateral with no liquidations (but interest accumulation). The combination of cross-chain swapping and native asset yield is THORChain's core value proposition.
RUNE's 3x requirement to pool assets means RUNE price and TVL are reflexively linked. In bear markets, pool assets decline, RUNE is sold to maintain ratios, price drops, which reduces bonding appetite, which reduces security. In bull markets this works in reverse. This reflexivity makes RUNE more volatile than typical DeFi governance tokens. The 2021 exploits also remain relevant context. Live data: CoinGecko
🟣 The full technical picture
For the technically curious.
Key facts
- Token: RUNE (network settlement + bonding + pool pairing, 500M max supply)
- Function: Native cross-chain DEX — swap native BTC, ETH, BNB, and more without wrapping
- Supported chains: Bitcoin, Ethereum, BNB Chain, Avalanche, Cosmos, Doge, Litecoin, and more
- Architecture: RUNE as universal settlement asset — every pool is 50/50 asset/RUNE
- Validators: Bond RUNE + hold multi-sig cross-chain wallets via threshold signatures
- 2021 exploits: Three exploits, ~$16M total — patched, LPs repaid from reserves
- Products: THORSwap (DEX), Savers Vaults (native asset yield), THORFi (lending)
- RUNE demand driver: 3x rule — $3 RUNE required per $1 in pools (1x pool + 2x bond)
Threshold signature cross-chain wallets
THORChain validators collectively control wallets on every supported chain using threshold signature cryptography (similar to Stacks' sBTC or ICP's Chain Key). No single validator controls the keys — a threshold (e.g., 2/3) must co-sign any transaction. This means outbound transactions (paying users their swapped assets) require collective validator approval. If a validator tries to steal from a pool, the other validators can slash their bond. The economic security comes from validators having 2x the pool value staked as RUNE — attacking the protocol would cost more than could be stolen.