FOS
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FOS - All achievements [ENG]
By FadeVanity
A video playlist showing how to obtain all 100 FOS achievements.
   
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Introduction:
This guide was made purely for convenience and clarity. Virtually all the following information comes from Trashes's guide, so all credit goes to them. You can find their guide here.

Massive shout-out to Zenyrix. Without him, I wouldn’t have finished everything in this game and subsequently made this guide.

For future achievement hunters.
Notes/pointers:
Here are a few important things you should know before diving into the videos:

  • You won’t be able to obtain all the achievements in ascending order. You’ll need to do #34 before #26-28, #49 before #48, #74 before #55, #90 before #88 and #89, #90 and #89 before #87, and #90 and #86 before #76-85. Also, Trashes recommends you do #69 before #66 and #67. I'm not sure if it's required, though.

  • If you’ve got achievement #74 but not #44, the game will bug, and you’ll be unable to obtain #44 without modifying the game files. A similar thing can happen with #52, but I'm unsure what causes that. (~)

  • I seemingly go off track for no reason in achievement #19. I was trying to show that you need to obtain the plane toolkit to fix the plane. As you probably know, once you store the sword, pickaxe and dynamite at the start of the game, it stays there. Similarly, once you've fixed the plane, the toolkit will disappear, and you're free to use the plane(s) whenever.

  • Unlike what I did, you can take the plane to speed up achievement #31.

  • There's a good chance this game will crash a lot. And I mean, a LOT. I found that the game crashed more often the further you got in it, but that might not be true for you. I didn't manage to record the ending of achievement #98 for this exact reason, even after recording it five times.

  • During some of the achievements, I frequently stood around doing seemingly nothing. That was intentional. As I played the game more, I started thinking the game crashed less when I played slower. Again, this is anecdotal. I'm not too confident with this claim, though. This isn't an issue for obtaining almost all the achievements, though, as you don't need the cutscene to play out for steam to count it. The only exception is achievement #100.

  • Unfortunately, the first few seconds of achievement #100 didn't record correctly. It's nothing serious, but it's frustrating, especially considering how convoluted achievement #100 is. Just know: I do nothing different to the start of the other paradise achievements. I just walked to the portal.

  • Speaking of achievement #100, if you've picked up all three keys and haven't got the achievement, like achievements #44 and #52, the achievement will softlock. To progress, you'll have to modify the game version, restart, or buy the airship DLC. (I wouldn't recommend buying the airship DLC solely for the achievement) (~)

  • The controls are WASD to move and left click to swing the sword. For achievements #22 and #40, press S to fall under the platform by the cliff.

  • The Excalibur is a sword you can obtain by completing achievement #40. You only use it for achievements #44 and #55.

(~) Trashes offered some fixes to help obtain these achievements without starting over.

(All credit goes to Trashes for the following. I'm just translating via google translate.)
Fixes
Achievement 44:

Originally posted by Trashes:
1. Close the game
2. Open the file “AppData/Local/GAME_100_KONEC_DELAY/Achivment.ini” in a text editor.
3. Delete the line starting with “70=
4. Save the file
5. Launch the game and try to get this achievement
6. After all this, you will need to complete achievement #74 again

Achievement 52:

Originally posted by Trashes:
1. Close the game
2. Open the file “AppData/Local/GAME_100_KONEC_DELAY/Achivment.ini” in a text editor.
3. Delete the line starting with “72=”, also delete “73=” (if any)
4. Save the file
5. Launch the game and try to get this achievement
6. After all this, you will need to complete achievement #53 again

Achievement 100:

Originally posted by Trashes:
If for some reason, after collecting all the keys, the wall does not let you in, there are several options for solving the problem:

1. Download the old build of the game via DepotDownloader[github.com] dated October 10, 2020. Saves should work
-app 1225810 -depot 1225811 -manifest 8184741424383180422

2. Buy Pack Airship DLC. It will add an airship from which you can bypass this wall.

https://store.steampowered.com/app/1252460/FOS__Pack_Airship/
Videos [Achievements]
Link to full playlist

#1

#2


#3


#4


#5


#6


#7


#8


#9


#10


#11


#12


#13


#14


#15


#16


#17


#18


#19


#20


#21


#22


#23


#24


#25


#26


#27


#28


#29


#30


#31


#32


#33


#34


#35


#36


#37


#38


#39


#40


#41


#42


#43


#44


#45


#46


#47


#48


#49


#50


#51


#52


#53


#54


#55


#56


#57


#58


#59


#60


#61


#62


#63


#64


#65


#66


#67


#68


#69


#70


#71


#72


#73


#74


#75


#76


#77


#78


#79


#80


#81


#82


#83


#84


#85


#86


#87


#88


#89


#90


#91


#92


#93


#94


#95


#96


#97


#98


#99


#100

Videos [Other]
Space unlock


You can access space after completing achievement #52 and using the spaceship.

Ocean unlock


You can access the ocean after completing achievements #90 and #86. You then use a pirate costume to get onto the ship.

Paradise unlock


You can unlock paradise after getting at least 59 endings from the main world. You then click on the greyed-out icon 20 times in a row.

Blue and green key


(For achievement #100)

Note: You don't need both the green and blue keys to get achievement #100. You only need the blue key.

Red key and #100 softlock


Note: Do NOT get the red key if you haven’t got achievement #100 yet.
Feedback
There are a few things I'm uncertain about with this game, so I'll pose some questions.
  • What causes the game to crash?
  • Can you prevent crashing?
  • What causes achievement #52 to bug?
  • What are the requirements for the keys to spawn?
  • Can you obtain achievements #66 and #67 before getting achievement #69?
Feel free to leave a comment or message me on discord (FadeVanity#4149) if there's anything to correct, something you think I should add, or if you can answer any of the above questions.

Thanks for reading!

4 Comments
Lava Riona 13 Feb, 2024 @ 10:42am 
The method from the comments helped me a lot for level 100. Thank you!
branches of trees woods 28 Jan, 2024 @ 6:22am 
you click and drag it closer to the ladder close enough that you can jump into it or any other place that's easily reachable (probably don't put it on a place that your character loads into so don't put it on the hay near your house or the portal in Paradise) then once you found a suitable place for it once again select file and this time select save put it in the same place where you loaded the file from in the common\FOS folder, it will probably ask if you want to replace the file say ok. Start the game through Steam and hopefully once you touch the place where you placed the rectangle the cutscene plays. (If it crashes i'm sorry i have no clue why it does it it just works sometimes. Probably just old code problems (Double sorry for this very wordy and long explination)) Only do this if you really don't want to spend the money and you only need this achievement.
branches of trees woods 28 Jan, 2024 @ 6:22am 
, wait for it to load then select file and open, go to where you have downloaded the game it will have a folder structure similar to "Steam\steamapps\common\FOS" in that folder there's going to be a "data.win" file open it and wait for the editor to load it(it will probably freeze just wait) once it has loaded on the left side there should be a tab called "Rooms" open it with the little triangle and find "room_map" (this is the main world map) double click this, once again wait for it to load and once it loaded and you see this teal/greenish color on the right use the vertical scroll bar and scroll until you see clouds the scroll right(with the horizontal scroll bar) until you see the airship from the dlc then scroll down there is going to be a big red rectangle on the right side of the Paradise island
branches of trees woods 28 Jan, 2024 @ 6:22am 
So I found a new way to get around the key problem if you accidentally picked up the red key like i did and you don't want to buy the dlc. You can use "UndertaleModTool" to edit the map and move the cutscene trigger somewhere else what you need to do is first download UndertaleModTool from github this is the link [github.com](scroll down and there's a "[h1]Downloads[/h1]" text and under it you can select the stable version.), extract then start the program with the provided exe.