The Game Theory 10th Anniversary Celebration!

Get Your 10th Anniversary Game Theory Merch! ►
SUBSCRIBE for 10 more years of Theories! ►

Theorists, we are 10 YEARS old! In ISboth years, we are practically the grandparents of online Creators. I could not have done it without you, our amazing Theorist community. From watching our videos, buying merch, supporting our charity livestreams, and more - it has always been thanks to you that I get to do this for a living. That I got to hire a team to help me. So today's livestream is not just about me and the channel, it's about honoring my team, and honoring all the Theorists out there like you. Thank you.

Thanks to the creator and dev team for creating the GT10 game, as well as gathering clips for us to use during the livestream:
Julie // Redberryweo
Siem Sium
Caleb "Tatertot" Tate
Julianna "Peanut" Rios - Geeky Peanut
Nicholas "explosivepebble" Hunter
Victoria Ling - Spiritmoonz
Emanuele Braga - Rety
Michael Matthews - Gamma
Alexander Goldberg
Bianca - Coolart

The game will eventually be uploaded to this URL, so keep checking back for when it goes live to play it yourself! ►

Thank you to the other contributors:
Carf Darko
KillMonday Games - Natalia Martinsson
Jonochrome - Jonathan
Austin Hourigan / Host of The Science
Jeff / Mothe'rs Basement
Tyler Mascola
Dan Levitt
Susan Clark
Tim Ruswick
Snowconesolid Productions - Samer Khatib
Ryder Burgin
Josh Langman
Pedro Freitas
Forrest Lee
Yosi Berman
Alex Sedgwick
Atmos Games - Thomas Brush
AmberDrop - Martin
RandomEncounters - AJ
Moderator - Deborah
SodaDrinkerPro - Will Brierly
St. Jude - Susan Clark \u0026 ALSAC team
Micheal Sundman (Gaijin Goomba)
Mark Fischbach (Markiplier)
Arin Hanson \u0026 Dan Avidan (Game Grumps)
Scott Cawthon
Reggie Fils Aime
BasicallyGames, dev of Baldi's Basics

Thank you to our special guests from Team Theorist for joining us on today's livestream:
Jason Parker
Dan "Cybert" Seibert / That Cybert Channel
Amy Roberts / Amariebythesea
Chris Widin

We'd also like to thank all of our community mods over on Reddit ►
Serah Cocoa

Become a well rounded Theorists and check out our other channels!
Film Theory! ►
Food Theory! ►


  1. Soapy2020 Official

    Soapy2020 Official3 klukkustundum síðan

    For anyone wondering when it starts its here: 4:23

  2. زهراء محمد عباس

    زهراء محمد عباس13 klukkustundum síðan

    Congratulations ! Our favorite channel :)

  3. Vinnolan Ramsamy

    Vinnolan Ramsamy2 dögum síðan


  4. Class 422

    Class 4223 dögum síðan

    look mat iv been watching for 10 years and im so happy your life got better so bye matt

  5. Kevin Lehman

    Kevin Lehman4 dögum síðan

    like I couldn't be there when it started lol I was 2 years old and same Jason the birthdays are the same

  6. TheNinthGeneration

    TheNinthGeneration4 dögum síðan

    Start at 4:21

  7. Nerd_ #4,137.

    Nerd_ #4,137.6 dögum síðan

    Wh@ever happened 2 “Game Lab”?

  8. Nerd_ #4,137.

    Nerd_ #4,137.6 dögum síðan

    R.I.P, Ronnie.

  9. Nova Kitty Archives

    Nova Kitty Archives7 dögum síðan

    it’s so amazing to me that matpat grew from this awkward theater dude with basic and bare-bones videos to married with a kid and making absolutely stellar videos but for 3 channels (4 if you count GT live but that’s not theories). happy ten years, dude. whatever happens now, whenever you stop making these, know that you’ve touched my life among millions of others for a decade with your brilliant mind and unique humor.

  10. Sir snom Gaming studio

    Sir snom Gaming studio7 dögum síðan

    This came out before delteruen chapter 2 and ddlc 2

  11. CyberKnight465

    CyberKnight4658 dögum síðan


  12. The Glowing Viper

    The Glowing Viper8 dögum síðan


  13. Nerd_ #4,137.

    Nerd_ #4,137.9 dögum síðan

    Good Gawd, you need a vacation. L.O.L.s 4 days.

  14. Nerd_ #4,137.

    Nerd_ #4,137.9 dögum síðan

    Congratulations!!!! (Seriously though, happy 10th anniversary).

  15. Nerd_ #4,137.

    Nerd_ #4,137.9 dögum síðan


  16. Marius Dittrich

    Marius Dittrich12 dögum síðan

    You are so great, keep on going.

  17. Jasmine Williams

    Jasmine Williams12 dögum síðan

    These tears are hurting and lifting my soul 😭😭

  18. Jasmine Williams

    Jasmine Williams12 dögum síðan

    I was SO into that Ninja edit story, I'm so sad it cut out 😭

  19. Jasmine Williams

    Jasmine Williams12 dögum síðan

    I want the deadlock episodes back so bad 😭😭 I loved them to pieces. That sucks that it was so difficult for them.

  20. TheAdvertisement

    TheAdvertisement12 dögum síðan

    It's awesome seeing the team together just basking in the glory of the last decade. You guys deserve all your subs and clout!

  21. Thabang Nkopane

    Thabang Nkopane13 dögum síðan


  22. Azba Bhure

    Azba Bhure13 dögum síðan


  23. Jamesoon

    Jamesoon13 dögum síðan

    I feel...old

  24. B R E A D

    B R E A D14 dögum síðan

    53:41 Ignore this, it's just a time stamp for me, myself, and I

  25. No Face

    No Face14 dögum síðan

    Game Over Thanks For Playing

  26. Carlffler Aziz

    Carlffler Aziz15 dögum síðan

    SHAME ON YOU MR OVER WATCH+ congratulations

  27. Nick Bacon

    Nick Bacon16 dögum síðan

    First SMG4’s 10 YEAR ANNIVERSARY of memes and adventures with our favorite idiotic pal Mario and now this. Happy 1 Decade to you both ^^

  28. cameron salehizadeh

    cameron salehizadeh16 dögum síðan

    can't say I'm still a fan but i remember watching this guy back in the 5th/6th grade

  29. Purple Irken

    Purple Irken17 dögum síðan

    I love you guys!!! Even though the videos were stupid(in a funny way), they helped me learn a lot of things over the years, and being the person I am, it's really hard for me to process the info but the visuals & execution of the videos (thanks to the editors) helped me understand. All and all, you guys are all just the best! :D

  30. Mr. Unknown

    Mr. Unknown17 dögum síðan

    Can't wait for the 20th Anniversary.

  31. Ann N

    Ann N17 dögum síðan

    I love that they paused to give Ollie love and attention

  32. Ann N

    Ann N17 dögum síðan

    Ollie 😍😭😍

  33. Ann N

    Ann N17 dögum síðan

    I have so much admiration for team theorists

  34. William Powell

    William Powell18 dögum síðan


  35. Jeremiah Bond

    Jeremiah Bond19 dögum síðan

    This remind me of SMG 410 year anniversary

  36. RayTracedAudio

    RayTracedAudio19 dögum síðan

    But that's just a theory.

  37. Sam Piccolo

    Sam Piccolo19 dögum síðan

    and happy 10th year!!!

  38. Sam Piccolo

    Sam Piccolo19 dögum síðan

    can you do theory on the v.r game fisherman's tale I love it

  39. Zach Long

    Zach Long20 dögum síðan

    Hell's bell's, I was just getting into friggin' college when he started this! I can't even comprehend that very well.

  40. Harrison Walker

    Harrison Walker21 degi síðan síðan

    Didn't get a chance to watch this till now... 😔 Happy late anniversary still everyone! 🥳

  41. The1stGiant Gaming

    The1stGiant Gaming24 dögum síðan

    Can always count on Chris to bring something from way out in left field and quadruplicate an entertainment factor that you already thought was beyond maxed out and more than entertaining then you can possibly handle.

  42. Jayden Stilwell

    Jayden Stilwell25 dögum síðan


  43. Micah Kirk- Games and drawings

    Micah Kirk- Games and drawings26 dögum síðan

    Happy late anniversary

  44. Keyla Sandoval

    Keyla Sandoval27 dögum síðan

    Don’t be sad

  45. Keyla Sandoval

    Keyla Sandoval27 dögum síðan

    By the way I’m 10 almost 11 so I’m a year bigger than film theory

  46. Keyla Sandoval

    Keyla Sandoval27 dögum síðan

    You should be happy to your 10 year anniversary

  47. Duz_Machines _84

    Duz_Machines _8427 dögum síðan

    "We've got a lot of pizza, which I feel too sick to eat" Yeah me too MatPat.

  48. reactory gaming

    reactory gaming27 dögum síðan


  49. Azrael2018

    Azrael201828 dögum síðan

    who would dislike this?

  50. Mr. Unknown

    Mr. Unknown17 dögum síðan

    Undertale Fans,i hate Undertale.

  51. Emo Nerd

    Emo Nerd28 dögum síðan

    Who else cried durning the song cause that was beautiful

  52. Marcela XD

    Marcela XD28 dögum síðan

    10 years on ruining childhoods! Yayyyyy!

  53. Fiona Skallerud

    Fiona Skallerud29 dögum síðan


  54. Popsicle girl 2028

    Popsicle girl 2028Mánuði síðan

    Just telling you fnaf has a cartoon it is called fazbear and friends

  55. Popsicle girl 2028

    Popsicle girl 2028Mánuði síðan

    Sorry 😞 for wasting your time it’s just a kids cartoon it can’t help you with your dark throes of fnaf

  56. Antonia Moore

    Antonia MooreMánuði síðan

    Congratulations! 🥳🤧🤧🤧

  57. Laura Atwood

    Laura AtwoodMánuði síðan

    as old as me

  58. Pranav

    PranavMánuði síðan

    im 9 and this channel is older than me my bday is july 4 th ngl not lyin But thats just a theory, a game theory!

  59. JoeyBook

    JoeyBookMánuði síðan

    Technically you're 12 if you go to about you joined in August 2009

  60. Fnaf fusion

    Fnaf fusionMánuði síðan

    He probably didn’t make videos or streams on this channel till 10 years ago

  61. Rajvir Daniel Singh

    Rajvir Daniel SinghMánuði síðan

    I always know how important Game Theory was to me, ever since I found it more than 9 years ago. But I had to admit I wasn't expecting to end up crying more than Matthew did in this video. This has really made me happy. I really look forward to some GTLives where they actually play more of this amazing game.

  62. Ambre Dragonne

    Ambre DragonneMánuði síðan

    Happy 10th birthday to this channel and lots of hugs and love to everyone in this community! Let's have another nice 10 years together!

  63. Hassan Alrafai

    Hassan AlrafaiMánuði síðan

    Sheesh subscribed since 2015 rember fnaf Siri’s

  64. Ernie G

    Ernie GMánuði síðan

    happy 10

  65. My_Chanel

    My_ChanelMánuði síðan

    game theory really deserved to go on for 10, and I hope it goes on for 10 more.

  66. Munkh-yalalt Chinbat

    Munkh-yalalt ChinbatMánuði síðan


  67. glittery_cucumber

    glittery_cucumberMánuði síðan

    Happy late birthday!

  68. The Hungry Hufflepuff

    The Hungry HufflepuffMánuði síðan

    Im rewatching at the 3 1/2 hour mark and Im in tears

  69. AnonymousGuy

    AnonymousGuyMánuði síðan

    It's odd. I used to really love GT. I even tried to learn the theme on violin at one point. But my interest in GT dwindled out sometime in late 2016; it was either the content of the times not interesting me enough or just growing up. & Yet I still routinely checked out what the channels were up to from time to time. I watched stream archives, waited in vain for DeadLock to return, & mourned over the loss of Ronnie "Oni" Edwards. I may not be as invested in the community as I used to be, but I am glad that I had those early GT memories & that the channels continue to provide such for others. Happy 10th, Matpat.

  70. B. Lee

    B. LeeMánuði síðan

    WAIT!!! WHAT?!?!? LUKE IS LIKE A ISboth RELIC!!!!! I had no idea you guys worked with him!!!!! Used to love Barats and Bareta!!!!!

  71. The Claimed

    The ClaimedMánuði síðan

    so, they have done theroy on fnaf lore, unnas anus lore, markiplier lore, when do we get gt lore?

  72. B. Lee

    B. LeeMánuði síðan

    I've never liked Austin more than that clip of him going off 🤣🤣🤣

  73. Logan Bauman

    Logan BaumanMánuði síðan

    We love you Matt

  74. Hi I am Cebolla

    Hi I am CebollaMánuði síðan

    I remember watching this in my moms tv with my brother times pass so fast that channels like this already have ten years

  75. Shubham Music Entertainment

    Shubham Music EntertainmentMánuði síðan

    People who are watching this comment I wish there parent's still alive for more than 💯 years god bless U &UR family 😭😭❤️❤️

  76. Cole Rosenbaum

    Cole RosenbaumMánuði síðan

    Why is Ollie's Hair so blond when both of his parent are darker haired?

  77. glittery_cucumber

    glittery_cucumberMánuði síðan

    Genetics (blonde grandparents etc), plus lots of kids have light hair and it gets darker as they grow up

  78. Mr. Stripes

    Mr. StripesMánuði síðan

    wow theres a lot of 10 year anniversary on youtube

  79. Robert Mauldin

    Robert MauldinMánuði síðan

    Here’s to 10 years

  80. the helper of games

    the helper of gamesMánuði síðan

    3:24:19 you started to go into a stitch voice from lilo and stitch 😂

  81. Jeremy Temple

    Jeremy TempleMánuði síðan


  82. Hecateris

    HecaterisMánuði síðan

    I'm as old as the chanel

  83. Daniel Roberts

    Daniel RobertsMánuði síðan

    The meme and fanart rooms should’ve been one of those non Euclidean ones where you can go round in the same circle over and over and yet it’s different every time

  84. Hayden Watson

    Hayden WatsonMánuði síðan

    Song at the end is an absolute banger

  85. Lauren Paige

    Lauren PaigeMánuði síðan

    Can't believe Mat and Steph have been at this for half of my lifetime. Such a blessing, thank you for all you've done.

  86. Paolo Miyashiro

    Paolo MiyashiroMánuði síðan

    Ollie hijacking the stream was truly iconic. Happy 10 years, Game Theory!

  87. Prancingdeer

    PrancingdeerMánuði síðan

    I would die for Ollie

  88. Pedro Fernández

    Pedro FernándezMánuði síðan

    Did I watched the entire 4 hours of stream? yes... Did I cry? Of course! Did I had a point on writting this comment? Not so much... Happy anniverysary!

  89. Doin Daworst

    Doin DaworstMánuði síðan

    Please Help! Sir! Please look into DST (Don’t Starve Together) So much more lore than Minecraft but also obscure and interesting! A casual no worries experience!

  90. Black PM

    Black PMMánuði síðan

    Congrats mat

  91. Luqman and u

    Luqman and uMánuði síðan


  92. Margaret Phillips

    Margaret PhillipsMánuði síðan


  93. Momento Mori

    Momento MoriMánuði síðan

    MATPAT FOR JEOPARDY HOST!!!!! Seriously tho, he’s be really good at it

  94. micky streit

    micky streitMánuði síðan

    I love when team theorist hangs out they're such a fun combo!

  95. Miranda Ntumngia

    Miranda NtumngiaMánuði síðan

    Matpat, your first video is: blood brothers (scence): swearing on the bible. Why haven't you talked about that?

  96. aqr𝗼x

    aqr𝗼xMánuði síðan


  97. Ꭱite

    ᎡiteMánuði síðan


  98. Siddhanta Pathak

    Siddhanta PathakMánuði síðan

    Can you make a theory about this why are six’s and Monos name number six=6 mono=1 is a new character 61 or 16?

  99. Shayaan Morshed

    Shayaan MorshedMánuði síðan

    Happy 10th. Sorry I missed the stream.

  100. Lioness94

    Lioness94Mánuði síðan

    Let’s be real- fNaf would probably still be small if fans hadn’t picked fNaf instead of slenderman....

  101. Mr green

    Mr greenMánuði síðan

    26:56 lmao bottom left

  102. Owen Harder

    Owen HarderMánuði síðan

    Great video

  103. rꪖꪀᦔꪮꪑ ρꫀrsꪮꪀ

    rꪖꪀᦔꪮꪑ ρꫀrsꪮꪀMánuði síðan

    MatPat, you deserve a pat-pat for making all these theories for 10 years.

  104. Star Fox

    Star FoxMánuði síðan

    WHOA! I saw my old art in the collab room, that is so cool!! :D Also - the game at 2:59:00 isn’t Try Not To Fall Asleep, it’s Close Your Eyes isn’t it?

  105. Kore Wonder

    Kore WonderMánuði síðan

    Ollie is the cutest ❤️

  106. biggo chungboi

    biggo chungboiMánuði síðan

    the fact that ronnie isn't here to celebrate this is heartbreaking.

  107. Micaiah Snow

    Micaiah SnowMánuði síðan

    You've made an Empire out of the Ether. You should be so proud! Keep it up guys! :)