Alien: Isolation Achievements "One Shot" and "100 Times Too Many"

Tips for achieving "One Shot" and "100 Times Too Many" in Alien: Isolation

Introduction

Hey guys,

There is a total of 7 hidden achievements and 4 of those are unmissable story progression achievements. This leaves:

One Shot
100 Times Too Many
Run.Hide.Survive

but you will get "Run.Hide.Survive" while doing "One Shot".

Hopefully in this guide you'll find everything you need to finish off those last hidden achievements!

Achievement: One Shot

To achieve One Shot it requires you to finish the entire campaign without dieing once. At first this might seem like some epic BS but you're actually able to load your current save file before you are killed and still have the achievement count as long as you never reach the death load screen.

If you do reach the death load screen it saves your current death but you're then able to rewind to a previous save before you were killed and it still counts as having no deaths.

Tips

• When the death animation is happening hit ESC and load your current save. This will negate the current death
  
  
• If you're not quick enough at hitting ESC and you are killed reload to a "previous save" back before you were killed.
  Warning: Loading "previous save" after dieing may only work once so if you want to play it extra safe load the "mission save" of the mission you died in.
  Credit - Dcruze, Deepeye, NSA
  
  
• Watch out for Synthetics when on low health, if they do grab you and you don't have enough health to survive it, hit ESC and reload before you die.
  
  
• Also watch out for Face Huggers. It's possible to hit ESC before they kill you but their death animation is extemely fast.
  
  
• You're able to achieve "One Shot" on any difficulty so playing on a lower difficulty will help save a bit of time and allows you to be more reckless like running through gun fire.
  Credit - Lukky333 for confirming One Shot on Novice
  
  
• LCpl. Schultz pointed out that you don't need to start a new game when going for "One shot", you can simply load back to a save where you haven't been killed before but to play it extra safe i would start a new game when going for one shot.
  Credit - LCpl. Schultz

Here's an example of when to reload to avoid a death counting:

Achievement: 100 Times Too Many

This achievement is basically just a grind by letting the Alien kill you 100 times. It can be done pretty much any time you can encounter the Alien but here is a few tips that might help speed it along.

Tips

• "Mission 18 - Tomorrow, Together" is the best spot to farm deaths shown here by Carlos in his video that i'll link at the end.
  
  
• The Alien death count stacks with multiple playthroughs, saves and DLC.
  Credit - ληтι¢!т!zєη¹ vs Alien OO for confirming multiple playthroughs
  Credit - Leonesaurus for confirming DLC
  
  
• It has to be the Alien that gets the kill, watch your health when around humans.
  
  
• If you don't have a Campaign save or just want to go directly for Alien deaths then doing Survivor mode can be a great way to get "100 Times Too Many" with levels like Reoperation.
  Credit - Nabi 16 Jul 2021

Carlos's video on farming Alien deaths:

Conclusion

Thank you for taking the time to read this guide and hopefully you were able to clean up those last hidden achievements!

Special thanks to all the legends who have been answering questions in the comments!

[Ghost Town]

No worries, best of luck! :)

[ollie]

yeah, I think too, thanks for the reply

[Ghost Town]

Ah that's unfortunate. You could probably start at the chapter you first meet the Alien but it's probably best to start a fresh run anyways to keep everything tidy :)

[ollie]

oof, now after I finished the game I don't know when did I die with saving the death and where not, so I guess I have to replay entire game huh XD

[Ghost Town]

Hey no worries at all, i'll update but leave it in because like you say a good spot to farm Alien deaths on a DLC level could be helpful.

[nabi]

Haha I just watched the vid that you included and I can tell that the mission 18 method is the fastest way. However, if for some reason the player doesn't have a save file there yet, doing it with the DLC would be fine. Sorry if you have to edit it again LOL

[Ghost Town]

Thanks for the tip! I haven't played any of the DLC but i'll trust you and add it as a tip for 100 times too many achievement! Thanks :D

[nabi]

Too many comments to sift through, but...

To grind "100 times too many," load up DLC level Reoperation, run out of spawn, and die. :) Fastest way imo.

[syvixay]

I earned 100 times too many on xbox on my first run accidentally lol

[Ghost Town]

Yeah it will, if you reload the mission save or reload back to a time before you died then you should still get the 1 shot achievement.

When i was going for my 1 shot achievement i died to a face hugger and reloaded the current mission save, started from the beginning of that same mission and still got the 1 shot achievement after i completed the rest of the game.