Robbaz - He is a Swedish guy I have watched for a very long time now. He has the ability of turning what could be mundane games to watch, into wild and crazy stories. Highlight series he's done are Skyrim, Kerbal Space Program, and The Sims.
He posts a lot less than he used to on YouTube, but they're great everytime he does.
Pre-warning - His videos contain a lot of dark humour, so may not be for everyone.
Dunkey, Let's Game It Out, NakeyJakey, Digital Foundry, and Gameranx are the ones I watch most regularly.
The Architect of Games and Razbuten are fun ones if you like video essays, and Keenengraz is great for finding lots of insane free games to play. ThatGuyGlen has some cool, short docu-style videos on the making of indie games that are really well done.
I'm sure I'm forgetting plenty, but those are some of my favorites, for sure.
It was a reference to one of his videos where he joined Overwatch voice chat with another Youtuber (I want to say Ethan Klein) and was messing with the rest of the team. They're different people.
Not really a content creator, but rather a network of creators - The Yogscast. They're fun, they're all friends, they make me laugh, they're wholesome and cursed at the same time, I love em.
Gaming is a pretty broad topic, so I'll give a range of answers that are gaming related but not necessarily strictly gameplay.
Summoning Salt - Speedrun Historian
8-Bit Music Theory - Video Game Music Theory
Game Maker's Toolkit - Video Game Design Theory
Jacob Geller - Video Essayist with focus on Games
DougDoug - Community Influenced Gameplay with Light Coding (also hilarious)
Nowadays Markiplier is the only one of the gaming YouTubers I watch that still uploads quality content regularly. Back in the golden era of YouTube gaming channels I used to watch PewDiePie, UberHaxorNova, Cryaotic, The Creatures, Kootra, ImmortalHD, FrankieOnPc, etc. Most of those guys no longer upload so I don't have much gaming in my feed anymore...
Vinesauce, Josh Strife Hayes, TripleJump when i just need to turn my brain off with a wall of content, plus a bunch of old SomethingAwful Guys: Smight, TieTuesday, Psychadelic Eyeball, Diabetus, etc
I don't watch that much Youtube nowadays (don't have much free time), but when I do, I enjoy these channels the most:
Girlfriend Reviews: Entertaining, funny, and wholesome reviews. Really like their dynamic;
GPLaps: Very interesting simracing channel, you get regular simracing content but also some very interesting videos about historic races, cars, tracks, etc., that he recreates with mods;
Kilian Experience whenever he feels like uploading. Has been branching to other stuff aside from gaming lately;
LordKnight: Fighting game-focused channel. Initially subscribed because he was the Millia player outside Japan but switched to Baiken since. Still has good, insightful content.
On PeerTube, there's BoilingSteam, who mainly focuses on PC gaming on Linux. I'd like to get a better feel for what's on there regarding gaming channels and whatnot. If you know any you'd recommend, I'd really appreciate if you could mention them.
He is the only streamer I actually like to watch. He knows when to talk, and when to stay silent and let the game atmosphere take the lead. He also has excellent taste in games.
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