Hey there. In this guide I will detail the method I used to obtain the "Extreme Persistence Detected" achievement. What you have to do is really dumb thanks to bugs so I decided it was worth it to make this short guide.

As mentioned, this does not involve copying data/saves from the original version.

(As of current patch: June 27, 2021):

1. Start a new game.
   
2. Play through until you exit A1 and enter A2.
   
3. Complete the yellow sigil puzzle (Suicide Mission) to create a checkpoint if you need it.
   
4. Enter the green sigil puzzle (Hall of Windows) and wait the initial 10 seconds.
   
5. Reset manually with button on the back of your hand.
   
6. Wait 10 more seconds.
   
7. Repeat steps #5 and #6 89 times for a total of 90 resets. Accounting for human error (I tend to count fast internally), this should get you around 15 minutes of game time.
   
8. Finish the puzzle.

Congratulations! You have just shown enough persistence to get the achievement!

Side note: I was initially deflated after trying this because the achievement pop-up didn't pop-up in-game like the others. That's possibly another bug. Just check the achievement list in the menu or in Steam afterwards.

I started with some good ole' googling research. The thread(s) in the steam forums for the VR version were not helpful as it appears the devs haven't been able to replicate the issue on their end. Then I went and searched for the same achievement in the original version of the game. I found this forum thread updated last year with a very detailed post by apple1417.

In short:

• The achievement works on any puzzle, not just red.
  
• The time required is based on 2x a hard coded par time for the puzzle you're in or ten minutes, whichever is longer.
  
• The timer for the achievement to pop is roughly 2 minutes after Elohim tells you to go try something else.
  
• You cannot just idle, you have to do various game actions. Each action resets an idle-check timer that has a duration of ~10 seconds.

skypiece in the same thread also piped in saying they managed to get the achievement in a puzzle in A2.

Using this as a basis, I chose "Hall of Windows" in A2 to attempt the achievement.



I chose this puzzle for a couple reasons.

• It's an early green sigil puzzle (in A2 bc superstition); this guarantees the timer will be short. 10-12 minutes. This also reduces how much game you need to play to get here.
  
• It contains two jammers. This limits what actions I needed to test.
  
• It only takes four basic steps to solve. Also makes testing easier.
  
• It does not contain any guards, also keeping it consistent. And quiet.

During the setup, I learned that the checkpoints that you manually load aren't created/saved unless you solve a puzzle or get a star. Only the save used for 'Continue' seems to tick over for just moving to different parts of the game.
So I headed over and completed "Suicide Mission" so I had a checkpoint in A2 to load from. This gave me a checkpoint with a game time of 1:58.

I'll save you the details of all of my failures but my attempts ended up looking like this:

(Also note the 1:12:10 file has all the red sigils and climbed the tower. No way I did it that fast.)
I stumbled a bit at the start but my discoveries for the VR version of this achievement came in about this order:

• Moving in the puzzle does not affect the timer (I was using classic locomotion to better match the original game.)
  
• You get a max of ~10 seconds of game time when you start in a puzzle (like my checkpoint), ~10 seconds when exiting a puzzle to the level hub, and ~10 seconds when you enter a puzzle.
  
• None of the jammer related actions (pick up, drop, jam, force drop by walking into a purple wall) affect the game time in any way.
  
• Manual resets do restart the game time timer. This adds a max of ~10 seconds.
  
• Being exploded by a guard also restarts the game time timer. Also adds ~10 seconds.

With the chunks of time I could gain and the actions available, I would theoretically need to wait 10 seconds and reset in a puzzle 12min x 60sec /10 sec = 72 times. I bumped that up to 90 resets for 15 minutes to account for human error.

I also wanted to use manual resets to get that extra couple seconds holding the reset button uses. You could theoretically get the achievement by dying to guards and turrets a whole bunch but I wanted to avoid their annoying sounds while counting. Leave a comment if you're successful going this route.

And after one failed but encouraging attempt while listening to music, I sat down and counted with great focus. And finally succeeded! The final game time for that checkpoint is over 19 minutes, up from the 2 minutes of the previous checkpoint. PHEW.

Thanks to apple1417 and skypiece for their forum posts that pointed me in the right direction.
And thanks to you for reading. It's a tedious process but I hope this guide helps bump this achievement up a bit more than its current 0.3%

Cheers!.