Planet Alpha
16 Achievements
1,000
6-8h
Timeline Erased
It was never meant to happen Details for this achievement will be revealed once unlocked
100
1.7%
How to unlock the Timeline Erased achievement in Planet Alpha - Definitive Guide
DevilofNuns
TrueAchievements
TrueAchievements
After a long journey you arrive to a red desert and stand on a platform where all 4 artefacts will activate. That is the end and the beginning.
Bingo, achievement "Timeline Erased" unlocked.
Congratulation, you finished the game.
For those who want a video solution, I found a full walkthrough on YouTube. So credit for the uploader "Virtual Conflux" for that video. The timestamp for this achievement is at 2:08:08 h.
I missed the 4th artefact in chapter 9, finished the game though and this did not pop.
TheWelshHunt
TrueAchievements
TrueAchievements
This will take around 2-3 hours, maybe more, depending on deaths etc.
Timestamps below this video and on my comment section on ye ol YT vid.
NOTE!
For this particular achievement, make sure you have all 4 artifacts collected otherwise this won't unlock!
Hope this helps
1. Mossy Slumber - 16:15
2. Bone Appetite! - 26:55
3. Second Chance - 31:00
4. Exploring The Unknown - Start 32:05/Finish 33:35
5. Those In Need - 39:25
6. Opposite Direction - 1:01:30
7. Searching For Answers - Start 1:06:20/Finish 1:08:05
8. Beneath The Clouds - 1:08:30
9. Reaching For The Sun - 1:21:00
10. Eager For The Truth - Start 1:29:25/ Finish 1:31:35
11. Dead End - 1:34:00
12. Down Goes The Water - 1:53:25
13. Lost In The Dark - 2:01:35 Start/2:02:40 Finish
14. All Together - 2:02:40
15. Unfolding The Mystery (Collectible 4) - Start 2:17:10/Finish 2:19:30
16. Timeline Erased - 2:25:40
Necrophage33
To unlock this achievement, you must reach the end of the game after having obtained all four artifacts. Each artifact is obtained by first coming to a large obelisk in the background (which are very obvious and tough to miss) and solving a simple puzzle to activate the hologram. Then, you'll need to head right and drop down and under the platform you were on, and press 
on the dimensional tear to go to a low gravity dimension. These are linear platforming areas, and getting to the end will reward you with an artifact.
When you pause the game you'll be able to see outlines of the four artifacts across the middle of the screen, and when you collect them they'll be colored in. If you miss any, you can go back with chapter select to grab them, but then you must replay the last chapter and reach the end of the game with all four artifacts to unlock this achievement.
The following video shows a full walkthrough of the game, including all birds and all artifacts. The majority of the game is very straightforward, so I don't recommend watching the video except for referring to birds or artifacts as needed, or if you get stuck. Otherwise, you're wasting time on very simple platforming areas. Full credit to the creator of the video. Open in Youtube to see time stamps for all achievements.
Sashadel
stratege.ru
stratege.ru
