MEMPOOL INVADERS · 3D ARCADE

Hold the line.

One cannon. One shot. An accelerating alien fleet.

PLAY INVADERS ↗ Free practice · optional verified BSV transaction tape

move ←→ · fire SPACE tap ◀▶ below to move · FIRE to shoot

1978 rules · 3D fleet · optional real transaction tape

Defend the block in free practice, or fund a run to record its events on Bitcoin SV. The tape shows only independently indexed transactions.

SELECT MODE

four rule sets, one bullet

START uses sponsored transactions when available. FREE PRACTICE sends none. Finish any open payment session before choosing practice.

Run budget BSV satoshis Maximum transferred into the run. Unspent funds remain yours.

One wallet approval opens a run. Unspent funds return after settlement; pending transactions remain saved for recovery.

External wallet refund address

Required for Yours or TreeChat. TXB Wallet uses its own receive address.

Move ←→ or AD · fire SPACE · P pause. On touch, use the pad below the screen.

Move with the ◀ ▶ pad under the screen · shoot with FIRE · PAUSE is in the row just below the pad.

your survivors hulls, flying under Invaders rules

Every hull you own in MEMPOOL SURVIVORS flies here — with different perks, bent to Invaders rules.

INVADERS PERK

No perk. The 1978 cannon, exactly as it shipped — and the mode everything else is measured against.

ALL HULLS

scanning your wallet for hulls…

HOW IT WORKS one bullet, one transaction, one verifiable tape

One bullet. Not a cooldown — an occupancy lock. The next shot only arms when the current one resolves, so the cost of a shot is its flight distance. Missing the back row is the worst thing you can do.
Every interaction settles. The shot, the hit, the saucer, the wave, the death — each is its own transaction, with its own sequence number, on the tape. Alien fire is not: that is the chain acting on you, not you acting on the chain.
A confirmed block lifts the bottom rank. Those aliens are not kills: they pay zero points and broadcast zero transactions, because the mempool drained itself and you did not shoot. That is also why no single event in this game can ever spike the relay.
The tape is the run. The closing SEAL carries a digest of every payload in order. Anyone can walk the chain, recompute it, and get VERIFIED or not. It does not make cheating impossible — it makes a faked score cost exactly what a real one costs.

every run lands here — the TAPE column says which ones a stranger can recompute

#	PILOT	SCORE	WAVE	SHOTS	TAPE
no runs sealed yet — be the first.

KIND	ON CHAIN	SATS SPENT
nothing broadcast yet.

Reconcile it against WhatsOnChain in under a minute.