- Idling isn't required anymore, just go to "Achieves" and press each button to get all achievements.
- Buttom 1k
0-1k ach
- Buttom 2k
1k-2k ach
- Buttom 3k
2k-3k ach
- Buttom 4k
3k-4k ach
- Buttom 5k
4k-5k ach
Source: Steam Community (opens in a new tab)