Mempire
Mempire is a real-time card battler where your fighters are the coins already sitting in your wallet. You mint a coin into a card, stake the token into that card to raise its level, build a deck of eight, and drop them on a live battlefield against another player — with SOL staked on the outcome.
The premise only works if one thing is true throughout: a card is never separable from the token it came from. Break that anywhere and the game becomes an ordinary card game with crypto branding.
What is actually onchain
Almost all of it, and the parts that are not are named plainly here rather than implied away.
| Thing | Where it lives |
| --- | --- |
| Cards, levels, staked balances | Solana devnet, in the mempire program |
| Match escrow and payout | Solana devnet, in the mempire program |
| Card plays during a match | A MagicBlock ephemeral rollup |
| Chest rolls and card drops | MagicBlock VRF, on the rollup |
| $MEMPIRE / USDC swaps | The mempire_amm program, on devnet |
| Matchmaking, ladder, clans | An off-chain API — coordination, never value |
The split is deliberate. Anything that holds value settles on Solana itself. Anything that needs to happen twenty times a second happens on a rollup. Nothing that decides who won or who gets paid lives on a server.
The three things that make it not a reskin
Your roster is your wallet. The game reads what you hold. Coins under $25k liquidity or younger than 48 hours are refused, which is what stops anybody minting a god card out of a token they launched this morning.
Your archetype is not a roll. A coin's mint address is hashed into one of
six archetypes. It is global and permanent — $BTC is the same class of
fighter in your deck as in everybody else's, and nobody rerolls into a better
one.
Conviction is the only power curve. Level comes from staking the token into its own card. The curve is deliberately brutal at the top, so a whale buys an edge and never a win.
Where to go next
- Gameplay — the loop, the gate, and the levelling curve.
- The simulation — why two clients agree on who won.
- MagicBlock — ephemeral rollups, permissions, VRF.
- $MEMPIRE & the AMM — the token and the pool behind it.
- Deployed contracts — every address, on devnet.
Everything documented here runs on devnet. No real funds move. Nothing on this site is financial advice or a promise about returns.