Let’s start this guide with a word of caution: Getting 100% Steam achievements in Outcast 1.1 is doable, but somewhat difficult, because 8 out of the 172 have issues and need special routes and tricks to unlock them.

After a stall of nearly 8 years, in early 2023 the gamer alegiassi came forward with new methods and solutions to these year long struggles. Big shoutout to him for making it possible to finally obtain all 172! He deserves a lot of gratitude!

The original guide was written by Ishavet in 2020 and updated in 2023 by Planet Adelpha.
Ishavet did a playthrough in May/June 2020 and wrote down a few of the things that he noticed about the achievements, including possible bugs and inconsistencies as well as some tips on how to get the vast majority of them. Planet Adelpha did a complete new playthrough in 2023 confirming it is indeed possible to obtain all 172 using special methods.


The in-game quest completion counter is only tangentially related to the achievements.

Lastly, please note that this guide is intended to be more of a compass to help you in your achievement hunt. The notes below are not spoiler-free, nor are they supposed to replace a thorough walkthrough that shows you how to complete all of the quests in the game (although, it does provide hints for many of the optional quests as well as how to obtain the non-story/non-quest achievements, should you need help with that). If you need more guidance for completing the game, you can refer to the 1999 guide by Jeff "CJayC" Veasey on GameFAQs (Link[gamefaqs.gamespot.com]) or, if you read German, the guide over at Planet Adelpha (Link[planet-adelpha.de]).

The main issues encountered with achievements in Outcast 1.1 can be summarized as follows:

• The vast majority of achievements work, but many of them may trigger only (but usually immediately) after reloading a savegame. It may also be necessary to quit the game completely before reloading a save, because for whatever reason, the game sometimes still “remembers” actions that you did after the save, if you do not restart the game. These kinds of “belated” achievements could also sometimes be triggered by traveling through a Daoka (portal) without quitting the game.
  
• Some achievements triggered some time after completing the required tasks, but more or less randomly or at a point in the game that seemed to be at odds with the achievement description (not to mention the color-coding of the achievement icons). In any case, these achievements are not broken in the strict sense, just don't be surprised if they don't trigger right away for you.
  
• Due to a bug, both the "Main quests!" and "Okasankaar quests" achievements can only be obtained if you do NOT catch the thief in Okasankaar - which itself is actually just a secondary quest - until the very end of the game. It is also highly advised to do the Mon in Okasankaar last and do all the other regions beforehand. You can do some things there like visiting Oru for the Oru & Kyuran questline or stopping Sankaar delivery, but you should not finish this region early on and definitely not do the thief quest! (The Okasankaar thief quest itself is also bugged and its achievement can only be obtained by handing the thief over after catching him instead of letting him go; this at least can be done by simply reloading a save and completing the quest both ways - more instructions on that in the relevant section of the guide below.)
  
• 3 achievements that are related to story events in the game are bugged and can only be obtained by using an older Steam version of Outcast 1.1 (namely, the April 5th 2015 build - see detailed instructions below on how to do that.)
  
• 3 region-completion achievements are bugged and can only be unlocked by using a patched Oc1.1.exe - again, see detailed instructions below.)

The following eight achievements cannot be easily obtained by simply playing the latest Steam version of the game. Thankfully, alegiassi found a way to get them all regardless! These achievements can be divided into two groups. Five of them are "%-completion achievements" and three are "quest-event-achievements" which should unlock after a specific event took place.

The Event-Achievements

These three achievements cannot be obtained in the current (newest) build of the game. The only way to get them is to play an older version of the game where they still work. To do this you need the April 5th 2015 build. Here is an in-depth guide how to do that: How to Download Older Versions of a Steam Game

Quick guide:
1. Open the Steam console by copy pasting this code into your browser's URL: steam://nav/console
2. Press enter. A launch application should pop up. Select the Steam client and open the link.
3. This will open the Steam console in your Steam client.
4. Type into the console: download_depot 336610 336611 2194734777874970592
5. Press enter to download the Outcast 1.1 April 5th 2015 build.
6. Wait for Steam to download the depot. You won't see any indication of progress, but it works in the background.
7. After the download is done, Steam will show you where the files were downloaded to.
8. Go to the original game's installation directory, and move the files somewhere else. Then go to where the depot files were downloaded to, and move everything over to the game folder.
9. You should now be able to launch the old version through Steam! (Game updates will make a mess, so make a copy of the files so you don't have to download them again)
10. Now launch the older version of Outcast 1.1. and you can easily get those three event achievements!

Important note: You should not use the older build for anything else than getting those three as this older build has other quest-related bugs, that were already fixed in the newest version of the game. You can transfer savegames between versions, but it comes with the risk of breaking other quests.

Recommended way:
1. Play the game with the newest build from the beginning and get the Shamazaar Mon, but don't give Zeo the second essence stone and don't go to Talanzaar. Create a savegame.
2. Swap the builds and load the older version of the game from April 5th 2015.
3. Load the savegame and aquire the three achievements.
4. Swap the builds once again to the newest version and continue your old savegame from before to get all the other achievements.

Side note: Step 3 (=getting the three achievements with the 2015 version of the game) can be done in about 30 minutes if you skip all of the dialogue (press E).

The %-Completion-Achievements

Fixing the OC1.1exe:
For three of these five it is obligatory to patch the game with a fan-made .exe
Why is that neccessary? Long story short: there is a small calculating error in the way points are counted in the game resulting in an over 100% completion score in three of the regions (Okaar mainquest, Shamazaar mainquest and Talanzaar subquest). The game can only trigger achievements if you reach exactly 100% whis is impossible in the game. The patched .exe does only change a minor formula and the way how the points add up. So you reach exactly 100% and can get the achivements.
Note: We don't consider this as cheating, as it does not alter your gameplay in any way and does not change anything than adding up those numbers correctly. You still have to do all the quests in a legit way! But keep in mind this is ultimately an un-official modification to the game.

The fixed .exe was made by alegiassi and can be downloaded on german Fansite Planet Adelpha: (Link[planet-adelpha.de] Simply copy it to your Outcast 1.1. folder and replace the existing OC1.1.exe with the fixed version.

Note: If you already have an existing savegame where you completed all quests in one of these regions you can simply load the savegame and the achievements should trigger. You don't have to re-start.

Okasankaar and Main Mission
Those two do actually already work without the .exe patch, but there is one major bug. As we mentioned many times before the thief quest in Okasankaar is broken and should be done at the last moment in the game.

What's wrong? If you catch the thief, protect his identitiy and then do the following two subquests (giving Zafar the money and then go with Zidar for the treasure) the game will re-set the thief quest as not done and you will end up missing this one main mission as completed. This results in both Okasankaar and Main Mission not completing, as you have one missed quest. There is some unknown error in the code which happens when you do these two following subquests...

How to solve the problem:
1. Play the game and do not catch the thief in Okasankaar early (now I said it a million times!).
2. Best is to do Okasankaar last and the other 3 Mons before it.
3. Defeat Kroax at the Darosham before you do the main quests in Okasankaar (fixing-boat light and Oru/Kyuran subquests can be done and don't cause issues).
4. Then get the Mon in Okasankaar (do all quests except the thief).
5. Best way to do this (but not mandatory) is you already did every single other mainquest and every single subquest in the other regions at this point.
5. Now create a savegame and keep it.
6. Now catch the thief, protect him and do the following two subquests (this should trigger your 100% subquests achievement)
7. Re-load the savegame and this time you don't protect the thief and tell him you will turn him in. Don't talk to Zafar and don't go for the treasure. Head directly for Okaar and do the game's finale and you will get the 100% main mission achievement (while subquests will be at 95% in the end screen).

Note: Either at step 6 or 7 the Okasankaar achievement will trigger. The Main mission achievement will only trigger if you didn't do the two subquests as written above (and did everything else in the game of course).

The following sections show how to get all of the 166 achievements that are obtainable in the current Steam version of Outcast 1.1. None of the achievements below are broken as such, but may show some abnormal "unlocking" behavior as noted in the annotation column.

Once again as a reminder: 2 of those achievements, namely the "Main quests!" and "Okasankaar quests" achievements, can only be obtained by doing the secondary "Thief" quest in Okasankaar at the last possible moment towards the end of the game (refer to section "Achievements requiring special methods" above for more info).

Now, here is some good news. While most of the achievements that are not related to story progression or quests are *technically* missable, none of them seem to be broken. Also, if you intend to do all the main and subquests anyway, you should have no trouble getting all of the achievements listed below naturally. On my playthrough I only had to do a little farming for collecting 30.000 zorkins and swimming over 5 kilometers.

Also note that any amount of money or resources spent is subtracted from the amount that you want to get for the achievement, so it will take longer if you keep spending. (This isn't really a problem since resources - as well as most kinds of enemies - in the game re-spawn.)