$SPTM · The economic model

Tokenomics

The numbers behind every launch, redemption and trade. All in one place.

Flow of fundsFollow the path from buying $SPTM to redeeming a Starrship.

Scroll horizontally to explore the diagram →

Pool tax 2% · $SPCX only

  • 1% back into the pool, thickening one side of the liquidity
  • 1% airdropped daily to holders in orbit

Redemption · 90 / 5 / 5

  • 90% returned to the current owner
  • 5% to ships still in orbit
  • 5% permanently burned
  1. Buy $SPTM on Uniswap V4. Each buy and sell pays a 2% pool tax, taken in $SPCX only: 1% goes back into the pool to thicken one side of the liquidity, 1% is airdropped daily to holders with a Starrship in orbit.
  2. Launch: the contract reads the pool's TWAP and works out the $SPTM worth 1 $SPCX. Pay this launch fuel to ignite. There is no launch fee.
  3. 85% reach orbit. Launch fuel enters the hold and mints a Starrship — an ERC-721 backed by roughly 1 $SPCX, and that share of $SPTM transfers with the NFT.
  4. 15% come apart. Launch fuel is not refunded: 50% of it is burned for good, and 50% is split, then and there, across everyone holding a Starrship in orbit. Nothing rolls back.
  5. Win or lose, the launcher receives a SpaceMan astronaut PFP — the first 1888 only. Both NFTs trade on the secondary market.
  6. Burn a Starrship whenever you like to take back 90%. Of the other 10%: half is burned, half goes to ships still in orbit — the burned half is one of $SPTM's two net outflows, the other being the 50% burned on every RUD.

Dev’s share goes to a public multisig for audits, randomness and operations. It is Dev’s only income; launch fees and pool tax do not fund Dev.

Parameters

Proposed model
Fuel to launch
1 $SPCX
$SPTM worth 1 $SPCX, priced by the pool’s TWAP
RUD probabilityp
15%
fixed in the contract · settled by verifiable randomness
RUD burn
50%
of launch fuel, on a launch that comes apart · fixed in the contract
Expected cost
≈ 1.176 $SPCX
= 1 / (1 − p). Not an independent parameter.
Launch fee
0
none. Launch fuel enters the hold, or splits: 50% burned, 50% to the fleet.
Redemption
90%
burn a Starrship, take back 90%
Redemption splitβ
90 / 5 / 5
owner / fleet / black hole
Pool taxτ
2%
on each buy and sell, in $SPCX only; $SPTM is untouched
Tax split
1 / 1
back into the pool as $SPCX / airdropped daily to holders
Backing
≈ 1 $SPCX
the $SPTM it locked up, transferred with the NFT
SpaceMan cap
1,888
issued on every launch, win or lose
Total supply
fixed · TBA
set by long.xyz at issue. Not ours to decide.

Proposed · to be locked once legal advice and the Appendix E decision land