All of the achievements with a mail symbol represent messages and you will receive them after triggering certain events (non missable).

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Get the following achievements by loading into the StarOS Desktop Menu.
The messages will pop up after a short amount of time.

Remote connection started: IPL: 0999924812-Z
Hi, I'm FBI Investigator Erom Yarp. Who has given you access to this software?


We can't give you many details.
But there is a police investigation underway against Star Industries S.L.


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After playing the first minigame you will receive this achievement:

I have been waiting for your answer.
You still there?


Umm, I see...
If you are not from a secure channel, open the "Diagnosis" program 3 times.


For the next messages you now need to open the "Diagnosis" programm 3 times and send data:

I understand, we still need you to collaborate with us.
We need some data.


Publish a diagnostic report.
I'll hack it as soon as it gets on the net.


Oops, it seems you can't access the core of the program.
Please keep using it until we have everything.


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After playing the third minigame and sending more data you will receive the following messages:

According to the Steam servers, this product should not have been released this year.
It was dated 1973, but the company went bankrupt. Be careful it could contain a virus.

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This message will pop up after playing the fourth minigame and sended all the data:

I have continued to investigate, Star Industries is planning to reopen in 1 year.
Is it all a marketing campaign? Send when you can the diagnosis. We need to see that you have this software.

Perfect! We have everything, I'm going to check it with the team.
Thanks!!


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The last mail achievements will appear during the playthrough of the last minigame:

Destroy this computer and meet the police now.
YOU ARE IN DANGER.


We will pay you for the trip. I send the coordinates of the police office:
$$.$$$$° N, $$.$$$$° W


Sorry, I have failed. It will not happen again:
38°40'37.1"N 0°29'53.0"W


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Start StarOS after completing the final minigame.

Remote connection stopped: IPL: 0999924812-Z
It won't bother us anymore ;)

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Start the game for the first time.

Welcome to StarOS!
Buckle up, we're taking off.


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After one minigame the little StarOS guy will ask you to find his bell (It is in the trash).
Find it there and you get this one:

DING, DING!
I didn't know you had visitors ;)


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After you received the green key in the fourth minigame you will receive the following achievements:

GIVE ME THE KEY!
▒░▒░▓▓▒░▒░▓▓▒░▒░▓▓


GIVE IT TO ME NOW!!
▒░▒░▓▓▒░▒░▓▓▒░▒░▓▓


KEYS, KEYS, KEYS!!
▒░▒░▓▓▒░▒░▓▓▒░▒░▓▓


▒░▒░▓▓KEY▒░▒░▓▓KEY
▒░▒░▓▓▒░▒░▓▓▒░▒░▓▓

Play the desktop card game and win 35 games.

Crazy about cards
Win 35 card games.


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Go to page 666 of the teletext and play the minigame.

The Devil?
Pray, the plague will come soon.


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Go to page 073 of the teletext and click the image.

HUH, HAVE YOU SEEN THAT?!
WHAT THE ♥♥♥♥ WAS THAT ♥♥♥♥?!


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In the last minigame you have the choice to kill the dog or to leave him alive.

If you will leave him alive you will get this achievement:

Have I been good, mom?
Mom?


If you kill him you will get this achievement:

Why don't you breathe?
...


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Until in 1 year.
Hide until then...


This is the most time consuming achievement to get because you need all of the gems in each of the minigames (6 gems in total)

Here are all of the gem locations in each minigame:
Level 1:
Go to this exact spot on the picture and use your axe smash on the rocks. Then go up, the screen will change and you will be able to collect the gem.



















Level 2:
At the top left of the picture you can see my character, which walked through the little bush gap in the wall, go through that and follow the track all the way to the gem.



















Level 3:
The image shows the exact location of the gem, just walk up at this point and it will reveal the hidden gem!




















Level 4:
At this exact spot on the map you can just walk through the wall at the top and grab the gem on the next screen slide.



















Level 5:
A green kid will spawn and walk to the upper right part of the map, follow it and the gem will spawn on the character spot in the picture.



















Level 6:
The last gem can be found if you follow the right track in the bush maze. You will enter a big room with the gem in the middle.

What you need to do after you found all of the 6 gems:

• Start the first level
  
• Get the axe and the golden coin, which is located in the top right corner of the map

• Go to the final room of the level and hit both of the skulls once
  
• A walkway will appear and lead you to a room in which you will get the achievement after you leave the room

If there are any mistakes about the triggering of an achievements or questions leave a comment in the section below this guide. Have a nice day!