My main hobby is gaming. I also really love cosplay, but that's one I can only do at conventions.
Beyond that, I have two others. First is this:
Yeah, they're basically like the classic Rubik's Cube, except more crazy. The normal Rubiks' cube is really easy now... to think, there was a time I thought the thing was impossible. Now it doesnt take much effort. Some of these in the photo, on the other hand... very hard. Others, not so much. I have quite a few more than just what's in the photo.
Next hobby:
Drones and RC vehicles. It's a relatively new hobby for me, but I've still got a good number of them. I have about 8 drones of various sizes (including the one in the photo). I have just the one RC car thing (the one in the photo), but I'm heading down to the hobby shop later today and will likely buy another.
These RC cars sure are different from the ones I had as a kid. Those were little, lightweight things that you drove around in your house, and they were slow and harmless.
The one in the photo is this big heavy thing that takes a good bit of setup to even use (battery pack has to be charged, needs a special charger, the whole car must be opened up each time to place the charged battery in. Charging is FREQUENT as drones and RC things use a ton of charge just moving around) and can reach high speeds. The one in the photo can hit 35 MPH. That's not scaled down, either, that's the actual speed. And that's a beginner model.... others go faster. The fastest one I'm aware of can hit 100 MPH. Because clearly, these things need to be going that fast.
These arent something that you'd want a kid to have, I can tell you that. The "harmless" aspect isnt there. You dont want these hitting you or anyone else. I saw one video of this guy who clearly didnt know what he was doing, he set one down about 20 feet in front of him... this big heavy truck thing... started it up, and just hit the throttle. He had it pointed towards him, very smart. It slammed into his legs. Unlike toy RCs, THAT thing didnt bounce off. It simply kept going. The guy basically flips forward and slams into the ground. That wasnt a super fast one, either. The guy was okay, but it was the sort of thing that still very clearly hurt quite a bit. You have to be CAREFUL with these. Same with the drones. I always describe the drones as "flying lawnmowers" to emphasize the bit where you SHOULDNT TOUCH THEM WHEN THEY ARE ACTIVE. It's bloody amazing how many people DONT follow that rule. I've seen many videos where there'll be a drone floating towards some idiot, and instead of letting it land, he reaches out, tries to grab it, there's a sound like "BZZZZZZZONK!!!" and then he's hopping around and waving his hand around wildly. The bigger drones could end up causing injuries that need stitches. Not exactly fun, so people need to NOT STICK THEIR HANDS IN THE BLADES. I dont understand why that's so hard to grasp, but apparently it is.
It's a very detailed hobby overall, actually. Many people put ALOT of work into these, both drones and ground vehicles. Some of them are way beyond my level, that's for sure. There are for instance some RC cars/whatever that run on actual gasoline. My uncle (who is really into cars of any sort and builds/repairs actual cars for a living) has some of those. Apparently they're absurdly loud. I'll stick with the ones with the bizarre batteries, thanks...
There's a hobby shop near my house that almost entirely is RC stuff and drones, as well as model planes, and about 8 billion parts for all of them. Which is good, it's easy to break these. I have a helicopter, and it had an "incident" involving the basement ceiling and a pool table (in my defense, the basement is HUGE and actually very well suited to me flying mid-sized or small drones around... but I underestimated the floaty-ness of the copter as it was the first one of those I'd gotten, moves quite different from a drone). Took it to those guys, they fixed it with little effort despite how damaged it appeared.