Last week, this interesting reddit thread was filled with overviews for cool projects that may help you learn a programming language. The top entries are:

• Build Your Own X, by Dani Stefanovic
• Project-based Learning, by Tu Tran
• Projects from Scratch, by Algory L.
• Project-based Tutorials in C, by Robby
• Awesome DIY Software, by Cameron Eagans

There’s a wide range of projects you can get started on building:

• 3D Renderer
• Augmented Reality
• BitTorrent Client
• Blockchain / Cryptocurrency
• Bot
• Command-Line Tool
• Database
• Docker
• Emulator / Virtual Machine
• Front-end Framework / Library
• Game
• Git
• Network Stack
• Neural Network
• Operating System
• Physics Engine
• Programming Language
• Regex Engine
• Search Engine
• Shell
• Template Engine
• Text Editor
• Visual Recognition System
• Voxel Engine
• Web Search Engine
• Web Server

If you want to focus on building stuff in a specific programming language, you can follow these links:

• C#
• C/C++
• Clojure
• Elixir
• Erlang
• Go
• Haskell
• HTML/CSS
• Java
• JavaScript
• Kotlin
• Lua
• OCaml
• PHP
• Python
• R
• Ruby
• Rust
• Swift

If you’re really into C, then follow these links to build your own:

• Computer Architecture
• Computer Networking
• Databases
• Game Development
• Operating Systems
• Programming Languages