How to Obtain the "YOU ARE GOD" Achievement

The specifics of how to unlock the "YOU ARE GOD" Achievement

Unlocking Through Gameplay

***To unlock this achievement legitimately, your Mountain must have a time played on the current save of 987 Hours.***

This may seem random but it is required by the game. This is not dependent of age of your Mountain. The only thing it depends on it is total playtime of the current Mountain.

Notes:
If your Mountain gets annihilated while idling, do NOT click "retry" but close out of the game. You will get your mountain back at the last made save. Also making backups of your save is a good idea. I've also heard reports of playtime for a save becoming bugged and not counting up. If this happens the only thing you can do is load an early save backup or start a new save. You will know if it is bugged by checking your save with a hex editor described in the next section.

Unlocking Through Save Editing

Alternatively, this achievement can be obtained through save editing.

First, locate Mountain's save files.
On Windows, this should be located in the path:

 C:\Users\[YOUR USERNAME]\AppData\LocalLow\David OReilly\Mountain

On OSX i've heard it is located here:

/Users/[YOUR USERNAME]/Library/Application Support/unity.David OReilly.Mountain/

On Linux/SteamOS i've heard it is located here:

~/.config/unity3d/David OReilly/Mountain

Second, open the .sav files in a hex editor (such as the program HxD) until you open the one laid out exactly like this (this is an example save):

01 00 00 00 0d 00 00 00 31 00 00 00 dc 00 00 00
35 03 00 00 62 22 00 00 00 00 00 00 05 00 00 00
16 00 00 00 05 00 00 00 c4 0b 00 00 3e 00 00 00
4a 33 22 00 77 00 00 00 55 00 00 00 

The size of this file is small, bytes in size.
This is the save that controls certain stats in the game, and what you are looking for is the total time played. The one that controls this is the hex:

3e 00 00 00

In the third row, last 8 characters (or bytes). The game works in such a way that it converts the decimal of hours played into hexadecimal. Then it appends zeros to the end of this hexadecimal to make it a certain length. Ignoring the zeroes, 3e in hexadecimal converted to decimal is 62. To unlock the achievement, one can put any number over 987 in hexadecimal.
For example, replacing

3e 00 00 00

with

FF F0 00 00

will unlock the achievement!
In the end, the save looks like this.

01 00 00 00 0d 00 00 00 31 00 00 00 dc 00 00 00
35 03 00 00 62 22 00 00 00 00 00 00 05 00 00 00
16 00 00 00 05 00 00 00 c4 0b 00 00 FF F0 00 00
4a 33 22 00 77 00 00 00 55 00 00 00 

HOWEVER, be aware that the game only checks your total play time for this achievement once every hour, so when you restart your game it may take up to an hour to unlock this achievement with this method!

Thanks

Thanks to the developer of Mountain, David OReilly
And thanks to https://steamcommunity.com/id/rei_onryou for investigating a few things

[Coda2022]

Thank you very much!
I finally got this achievement!
All I had to do was find "apsdfpboasdfhsa.sav",edit it as the guide and just wait.

[LlibLo]

Thank you so much for the guide!!
As much as I don't like altering save data to get an achievement... 987 HOURS is ridiculous. That's 42 days of nonstop play!!!! With the uncertainty of bugs in the equation it isn't worth that kind of time sink.

[Jenna]

@Tucnace - thank you so much for your helpful comment, I'd never have got all the lengthy achievements without your help!

[gnawmik]

Big ups to @Tucnace and @Doctor Alien, helped me figure this annoying stuff out. And of course, huge ty to the OP @souperdooper!

[Tucnace (CZ)]

The file name is always "apsdfpboasdfhsa.sav", the 4-byte fields are the following:
- 1 (the game writes 1 but it can be anything)
- 13 / 0D (the number of stored stats, DO NOT TOUCH!)
- Objects Landed
- Object Organized
- Objects Sang
- Days Passed
- Weather Plagues
- Deaths Experienced
- Deaths Prevented
- Bombs Exploded
- Thoughts Generated
- Hours Alive
- Music Keys Pressed
- Clouds Dispersed
- Minutes Idle

[Minkja]

gonna echo a past question because i haven't found an answer

is there a way to check the age of my current mountain?

[Baronessa]

Another way of preventing Apocalypse Events from destroying your Mountain is getting an autoclicker, since playing notes creates a shield that protects you from the Event.

[Momekato]

I cant find the SaveFile

[Doctor Alien]

This Works for My:

01 00 00 00 0d 00 00 00 31 00 00 00 dc 00 00 00
35 03 00 00 62 22 00 00 00 00 00 00 05 00 00 00
16 00 00 00 05 00 00 00 c4 0b 00 00 FF F0 00 00
4a 33 22 00 77 00 00 00 55 00 00 00

[L ¬]

does editing this file change your hours played on Steam itself? like does that value transfer into the steam client? if so can i change it back? i dont want it to say i played for 1k hours if i didn't but i hate the idea of not 100%ing this game :(