Analysis
- RenderDoc
- Graphics debugger for Vulkan, D3D11, OpenGL & OpenGL ES and D3D12
- Sysinternals Suite
- Collection of useful troubleshooting utilities
- WinDirStat
- Disk usage statistics viewer and cleanup tool
- Windows Performance Toolkit
- Performance monitoring tools that produce in-depth performance profiles
- Wireshark
- Program for network traffic capturing and analysis
Archiver
- 7-Zip
- File archiver with a high compression ratio
Emulation
- BGB
- GameBoy and GameBoy Color emulator and debugger for Windows
- DOSBox
- DOS emulator
- Emulicious
- Game Boy, Game Boy Color, Master System, Game Gear and MSX emulator
- FCEUX
- Nintendo Entertainment System (NES) and Famicom Disk System (FDS) emulator
Games
- ADOM: Ancient Domains of Mystery
- Epic roguelike and RPG
- Battle for Wesnoth
- Turn-based tactical strategy game with a high fantasy theme
- Cataclysm: Dark Days Ahead
- Turn-based survival game set in a post-apocalyptic world
- Dungeon Crawl Stone Soup
- Roguelike dungeon crawler
- Dwarf Fortress
- Fantasy simulation
- Freeciv
- Remake of the original Sid Meier's Civilization
- NetHack
- Text-based fantasy RPG dungeon crawler with procedural generation
- OpenRA
- Remake of Command and Conquer: Red Alert with many improvements
- OpenRCT2
- Open source RollerCoaster Tycoon implementation with many improvements
- OpenTTD
- Open source simulation based on Transport Tycoon Deluxe
- POWDER
- Oldschool roguelike with simple graphics
- Simutrans
- Transportation simulation game similar to Transportation Tycoon
- Tales of Maj'Eyal
- Tactical RPG roguelike
Graphics
- Blender
- 3D modeling program
- GIMP
- Image manipulation program similar to Photoshop
- GrafX2
- bitmap paint program inspired by ​Deluxe Paint
- GraphicsGale
- Inkscape
- Vector graphics editor
- Krita
- Professional open source painting program
- MagicaVoxel
- 8-bit voxel art editor
- Paint.NET
- Very basic image manipulation program similar to MS Paint
- yEd
- Powerful diagram editor that can be used to generate drawings of diagrams
Internet
- Brave
- Privacy-focused web browser
- Chrome
- Google's web browser
- Discord
- Voice and text-chat application for gamers
- FileZilla
- Open-source FTP client
- HexChat
- IRC client based on X-Chat
- PuTTY
- Telnet/SSH client
- Thunderbird
- E-mail client, calender, and address book
Multimedia
- Audacity
- Audio editing and recording software
- DaVinci Resolve
- Professional video editing software
- OBS Studio
- Open source software for video recording and live streaming
- ScreenToGif
- Screen, webcam and sketchboard recorder with an integrated editor
- Sekaiju
- MIDI sequencer/editor software
- Shotcut
- Open source, cross-platform video editor
- Sidplay2
- Plays SID files (C64 music)
- NSFPlay
- Plays NSF files (NES music)
- VLC
- Sophisticated multimedia player
Office
- MiKTeX
- TeX implementation with additional tools and content, comes with the TeXworks editor
- LibreOffice
- Program suite similar to Microsoft Office with additional features
- TeXworks
- Minimal but very reliable LaTeX editor
Programming
- Eclipse IDE
- Development environment primarily for Java applications
- Git
- Distributed version control system
- HxD
- Powerful hex-editor and disk-editor
- Notepad++
- Extended Notepad with syntax highlighting, spell-check, macros and more
- Visual Studio Code
- Cross-platform code editor, debugger, GIT support, etc.
- Visual Studio Community
- Free version of Microsoft Visual Studio
Scorewriter
- LilyPond
- Text based music notation program
- MuseScore
- Music composition and notation software
Trackers
- AdlibTracker
- OPL3 FM-chip tracker
- FamiTracker
- NES/Famicom chiptune tracker
- GoatTracker
- C64 chiptune tracker
- LittleGPTracker
- Tracker based on LSDJ
- MilkyTracker
- Tracker based on FastTracker 2 (XM format)
- OpenMPT
- Supports XM, IT, S3M, MOD, and MPTM format
- SchismTracker
- Tracker based on ImpulseTracker (IT format)
- SunVox
- Advanced modular tracker
Instruments/Effects
- GeneralUser GS
- GM and GS compatible SoundFont bank
- Dexed
- FM synth that is closely modeled on the Yamaha DX7
- OmniMIDI
- Software MIDI synthesizer
- Synth1
- Classic free VST
- VCV Rack
- Open-source virtual modular synthesizer
Virtualization
- VirtualBox
- Computer virtualization tool