Managing your planet in Astrelyne: buildings, school, shield and raids

1 October 2026 · 2 min read

On top of the battles, every commander in Astrelyne owns their own planet. Well managed, it produces gold, orbalite, gems and experience, even while you are not playing. Here is how to get the most out of it.

The five buildings

Production increases with the building's level: a level 3 House earns three times more than at level 1. Buildings go up to level 3, then 4 after galaxy 6 and 5 after galaxy 10.

Collect often

Each building stores at most 8 hours of production. Beyond that, it produces nothing more: come and collect at least twice a day. The "Collect all" button picks everything up at once.

Orbalite, the lifeblood of your planet

Building and upgrading cost orbalite, more and more at each level. You earn some in every battle (more for a victory and against a boss), and the Factory produces it. Early on, building a Factory quickly speeds up everything else.

The School: experience without fighting

Available after galaxy 3, the School trains your heroes: each collection gives its XP to every hero in your team. Only one School per planet, but it quickly pays off to keep your team up to the enemies' level.

Expand and reorganise

Your planet starts with 6 plots. You can expand it up to 9 plots for orbalite: 600 for the seventh, 1,500 for the eighth, 3,500 for the ninth. A badly placed or useless building? Demolish it: its stock is collected and half of the orbalite invested is refunded.

Raids and shields

Other commanders can attack your planet when it has no shield. If they beat your team, they take half of what your buildings have not collected yet (gold, gems and orbalite; the School's XP cannot be stolen). To protect yourself:

• new players have a 72-hour shield;
• a raided planet receives an 8-hour shield for free;
• the Shield Generator produces shield minutes to collect;
• you can buy 8 hours for 20 gems or 24 hours for 50 gems (72 hours maximum).

Careful: launching a raid yourself drops your own shield. And the best shield is still to collect often: then there is nothing to steal.

Customise your planet

The 🎨 button lets you choose your planet's colours from 8 palettes and your system's star from 6: yellow sun, red giant, blue star, white dwarf, double star or pulsar. Other players see it when they visit your planet.

All the numbers, level by level, are in the buildings guide.