Economy

The game runs on 3 currencies. Your plane earns Coins in flight and you pour them back into upgrades. Gems are the premium currency. Plane Tickets are play energy you spend to attempt a run.

Currencies

Icon	Currency	Role
	Coins	Soft currency. Earned passively as plane income; spent on the Engine, Income, and Slingshot upgrade tracks.
	Gems	Premium currency. Used for speed-ups, special unlocks, and shop offers.
	Plane Tickets	Play energy. A run costs one ticket; they refill over time, top up when you clear a level, and never buy planes.

Coins do all the work. Gems never gate progress, and Plane Tickets only pace how often you can fly.

Prices

Every price in the game comes from five formulas:

Quantity	Formula
Engine upgrade cost	`100pow(3.75,{lvl})pow(1.25+0.05{lvl}(1+0.5*{unv}),{englvl})`
Slingshot upgrade cost	`100pow(3.75,{lvl})pow(1.25+0.05{lvl}(1+0.5*{unv}),{slglvl})`
Income upgrade cost	`100*pow(1.5,{inclvl})`
Income multiplier	`pow(2, floor({inclvl}/{upgtiers})+{lvl})(1+0.1({inclvl}%{upgtiers}))`
Flight reward (coins)	`({dist}+{colcoins})*{incmult}`

World costs

The same formulas made concrete: the first world, mid-roster, and endgame. First Engine level, then the total to buy every level of all three tracks.

World	First upgrade	Max everything	Income multiplier maxed
#1 Sabana	100	5.19M	×22.4
#13 Giant Garden	773.35M	4.55Qa	×91,750
#25 Night City	5.98Qa	22.36Sp	×375.81M

The whole economy inflates with you: prices explode across worlds, and the income multiplier explodes with them, so a maxed late world earns its costs back at the same pace an early one does.

In these, lvl is the world’s position, englvl / slglvl / inclvl count that track’s purchased levels, and upgtiers is 5. In practice: Engine and Slingshot start at 100 Coins and get 3.75× steeper each world, Income costs the same everywhere, and the multiplier doubles every 5 Income levels. Worked numbers are on every plane page.

Gem pack prices are set in the store and vary by region.