The premium currency — earned in-game or deposited, spent on instant actions and commissions.
Space Energy (SE) is the premium currency. You can earn it through gameplay — missions, achievements, and onboarding rewards — or add it by depositing. SE is held in two pools: an Earned pool (from gameplay) and a Deposited pool (from deposits). When you spend, your Earned SE is always used first, protecting your deposited balance.
SE pays for instant-finish on building upgrades and ship training, permanent extra builder slots, market commissions, and store purchases such as shields, stamina refills, and resource packs. Space Energy is never traded on the market and cannot be passed to another commander — it enters your account only through deposits and gameplay rewards. See the Economy section for exchange rates, fees, and deposit rules.