Some of these are free. I'm not the OP credit is for [–]FrancisMcKracken under this post https://www.reddit.com/r/AskReddit/comments/46v4y5/whats_a_fun_hobby_you_can_get_into_under_50/

Since you are on Reddit, there's a good chance you own a computer. Here's a list of things you can do for free: 3D modeling https://www.blender.org/ /u/JCthulhuM says: http://www.sketchup.com/products/sketchup-make Digital Painting: https://krita.org/ Vector Drawing: https://inkscape.org/ Digital Music Production: https://lmms.io/ /u/HP40 says: https://www.audiotool.com/ /u/jackled says: http://ardour.org/ Music MIxing: http://mixxx.org/ Photo/Image Editing: http://www.gimp.org/ Go to school and take courses: https://www.edx.org/ https://www.khanacademy.org/ /u/Kong_Dong and /u/zzgoogleplexzz say: http://www.coursera.org/ - I knew I was forgetting one! Learn programming: https://www.udacity.com/ https://www.codecademy.com/ /u/TricksterofU says: http://cscircles.cemc.uwaterloo.ca/ /u/GSRoTu says: http://scratch.mit.edu/ /u/CounterSeal says: http://www.theodinproject.com/ /u/Stiino0 says: http://www.freecodecamp.com/ /u/Swimguy72125 says: https://thenewboston.com/videos.php Make a game: http://unity3d.com/get-unity https://www.unrealengine.com/ /u/HeavyHDx says: http://www.godotengine.org/ /u/zxj4k3xz says: http://www.yoyogames.com/get https://play0ad.com/ - free, open-source, historical RTS game, being built, and could use more help Learn a language: https://www.duolingo.com/ (App is free for iOS and Android) http://readlang.com/ - I just remembered this one, it's Chrome extension which translates to teach. /u/Ihmed says: https://www.memrise.com/ Play old arcade games: https://archive.org/details/internetarcade Play old PC Games: https://archive.org/details/classicpcgames Learn how to fly a flight sim: /u/FlightGearLego says: http://www.flightgear.org/ - Free Flight Sim Write a book or short story. Edit: Added Unreal and Doulingo (I've got at 67 day streak going right now IDK how I forgot it.) Edit2: Wow! Thanks for the gold! I'm adding suggestions from the comments below. Edit3: Oh! The source of my username is available to play on archive.org! https://archive.org/details/msdos_Zak_McKracken_and_the_Alien_Mindbenders_Enhanced_1988