Happy Birthday QSERF! 

It's been 5 years. wow. I remember playing 3 years ago. This game was awesome. I'm glad i was here throughout the journey.

So glad the know that the person that runs the QSERF channel didn't get Valve syndrome

Havent been playing for even a year yet, i love QS and the community, this video is perfection, almost nothing could top this.

Im the employee of QS and i can say happy birthday QSERF we are proud of our great company happy birthday DMR and the warhead and of course f9 🥳🥳🥳

been here since the beginning!

1:43. i was there

From Zero to Hero. God bless you QSERF.

II'm getting to know QSERF in 2021. Since childhood I have been interested in sci-fi themes, and I was very interested in this experience. I still go to this experience to enjoy the atmosphere and control the reactor, which was very cool. On my own behalf, I congratulate all the players and the development team on their anniversary and wish them successful development!

Well. Well. Well. For five years, QSERF has improved dramatically.

Been here since QSML2 and here to stay. God i love this game and community. Happy birthday!

It's been 5 years already?!

I cannot believe that this game has come so far in only five years! It is amazing how much can be accomplished when people come together. Happy birthday QSERF! 🎂

QSI - Alex, this is amazing, you've done a fantastic job.

Happy birthday! Long live QS!

I love this game so much. Happy Birthday QSERF!

Happy birthday QSERF 🎉🎉🎂🎂

5 star video, nothing else can be said.

I am so glad I found this amazing game. I remember 3 or 4 years ago when it was one of the first iterations of the rcr. And the amount of things that have been removed and put back or completely redone is absolutely crazy. Keep up the good work quantum team.

Always been here since the earliest days.

5 years wow I remember playing this game in 2020 and it was so fun and I still sometimes play it🎉

I found a couple friends from this game thanks for making this masterpiece

ofc #1

Happy Birthday QSERF

happy birthday qserf, for all the fun you’ve brought over the years

Good to see that Qserf is still going strong! Good luck on that new venture!

5 years already. Man time flies

I ABSOLOTELY LOVE THIS!! GOOD JOB!!

Yesssssesss🎉🎉🎉🎉🎉❤

DAMN, THIS IS BETTER THAN I THOUGHT IT WAS GONNA BE!

HAPPY BIRTHDAY 🎂🎈

Happy Birthday QSERF🎂🎂🎂🍰🍰

Happy birthday qserf!

HAPPY B-DAY QSERF!!!!!!

Happy Birthday!

Happy birthday qserf

until the world ends is such a great song It’s a miracle that it’s royalty free

Happy birthday qserf, may MRC continue to grow! I really like MRC!

I found this game one time and it did not disappoint

It’s beautiful😢

experienced two or so map changes throughout my time in qserf, its been quite a journey

Idk if this is a good place for suggestions. I was thinking if adding vehicles would be nice or at least we can go outside of the research centre.

Such an amazing game

lovely

cant belive its been 5 years already

Yayyyyy!❤🎉

QSERF has been so good for so long now

I swear the last few years just passed so fast

Happy birthday to the second core game i played on my journey

Happy 🎂 Day you silly space magic rice cooker.

5 years to the game that changed my life 🎉

i love this vid

YAYYYYYY

Greatest game in roblox👍👍👍

I’ve been playing for round 2/3 years now. I can see there’s a big difference

Happy birthday, Quantum Science (erf)! To another year!

I play it every day if i have time

Happy B-Day to QSERF then. 🎉

I remember play QSML and QSML2

happy birthday quantum

Happy birthday. Quantum Science, 🎉💙

happy birthday qserf!🎊

HAPPY BIRTHDAY!!!! I LOVE YOUR GAME! also i have one question. how do you get primission to join security?

"attempting to have you flee-" everyone: (⁠＾⁠∇⁠＾⁠)⁠ﾉ⁠♪

Happy Birthday to QSERF!

i share a birthday with a roblox game. that's pretty cool btw epsilon-8 section when?

🎉🎉🎉🎉

Holy, that's me at timestamp 0:35!

been here since 2021

NOOO I MISSED IT!

this happens every single time i play the game why is it special now besides qserf's birthday?

crazy

The irony in the event happening at 11:53 PM… If you know you know

I have seen it real in game happening.

Happy Birthday QSERF!!!! (I hate this game so much agggggghhhhhhhhh)

W

HAPPY BIRTHDAY! even though i got perma-banned from every QS game for spamming) edit: the spamming wasnt even a slur or swear)

YAY

Keep it up meow :3

epic

Wow

I would recommend freeing the private server and for ps controls you can make a gamepass but who already bought the ps give them ps control for free

AYeye

QSERF this a Good But Your game cash my pc But This game good

The black hole 2:07 ever I even see

Uhhhh my tv says it starts at 3:45 am my iPad say it starts at 1:54 am and my phone says 11:45 pm

i said gg five times

been playing 4 years but can you please optimize the game more i cant really run it on my tablet only my computer

since 2019, Im still Hate Meltdown kid😂

I no longer play this game cuz turkey banned in roblox

ok

Many games inspired you, can we have QSML3 V3 back?

QSEF UNBAN ME PLEASE I HAD THE WARHEAD GAMEPASS AND I MISS JUST GIVING PEOPLE THE OPPORTUNITY TO SEE WARHEAD and also grouping up and planning how we were gonna do warhead with security in the server so if you see this just unban me PLEASEE ( i tried appealing but moderators do not want to accept unless i have a god ranked essay in there)

What is this

Да💥💥💥💥💥🌋🌋🌋🌋🌋 What is QSO?

Rashad Corner

Daniella Loaf

HI Wild ITS ME NOOBVV99

Miller Patricia Martinez Kimberly Harris Charles

IS MY BIRTHDAY BOZO