1. Start the game by launching Idle Planet Extend on your mobile device.

2. Begin with a small planet and start collecting basic resources such as energy and minerals.

3. Slide your finger on the screen to move your astronaut and explore different parts of the planet.

4. Tap on machines and buildings to activate them and increase resource production.

5. Use the collected resources to build and upgrade structures that improve efficiency and attract new inhabitants.

6. Complete missions and quests to earn rewards and unlock new features.

7. As your planet grows, research new technologies to unlock advanced upgrades and new buildings.

8. Explore other celestial bodies like the moon and distant planets to find rare resources and expand your influence.

9. Use automated machines to continue collecting resources even when you're not playing.

10. Balance your resources between development, population growth, and sustainability to keep your civilization thriving.

11. Watch out for challenges such as alien invasions or natural disasters and prepare your planet accordingly.

12. Continue progressing to unlock new planets and expand your space empire across the galaxy.

13. Check back regularly to manage upgrades, complete tasks, and push your civilization further.