Here's a complete guide on how to get the only achievement in the game "The Plan"
1. Launch the Game
2. Click Start
3. Hold W on your keyboard to go up
4. Hold W for about 5 minutes
5. At some point there's a possibility to get stuck in a spider web. If this happens then press D on your keyboard a few times to escape.
6. Continue holding W on keyboard.
7. At some point when you're in space it'll take you back to the home screen
8. When you're at the home screen, click on the label at the bottom of the screen
LABEL SHOULD LOOK LIKE THIS
Created by Krillbite Studio

"The Death of Aase"
Written by Edvard Grieg
Performed by Oslo Camerata
Under license from Naxos International

Original fly by sebastian_k

9. Once you click on the credits label you'll get the achievement
10. There's a possibility that the game will crash once you click on it. If this happens just relaunch the game and try clicking on it again.

Hope this was helpful!!!