Play Idle Space Empire Online

About Idle Space Empire

Idle Space Empire is a space-themed incremental game where you harvest energy to build a galactic empire. Start with solar panels and progress through 10 structure tiers up to Warp Gates, unlock upgrades that multiply production, and jump to new galaxies to earn Star Points for permanent boosts. Features comet events, achievements, offline progress, and deep progression.

How to Play

1. Click the harvest button to collect energy manually
2. Buy structures like Solar Panels and Reactors to produce energy automatically
3. Purchase upgrades to multiply structure production
4. Watch for comet events that appear randomly for big bonuses
5. Jump to a New Galaxy when ready to earn Star Points for permanent bonuses
6. Spend Star Points on galaxy upgrades that persist through resets

Controls

• Mouse Click: Harvest energy manually
• Buy Buttons: Purchase structures and upgrades
• Tab Bar: Switch between Empire, Upgrades, Galaxy, and Achievements
• x1/x10/x100/Max: Toggle buy quantity for structures