All the gamedev-related links I stumbled upon and found pretty cool.
Planning
- Codecks -- cool for game developers.
- Mindmaps -- a free mindmap creation tool.
- Excalidraw -- a small tool for drawing diagrams and schemes.
- MonoSketch -- ASCII diagram builder.
Graphics
- Pixel art editor, palette list and a whole lotta tutorials!
- Voxel graphics description language.
- MagicaVoxel.
- Imagemagick scripts.
- Palette generator.
- Realtime colors for palette testing.
- JSPaint. They say paint is the best tool for pixel art. :)
- Explosion Generator.
- Graphite vector editor.
Free Assets
Sounds and Music
- Modular DAW: bespoke.
- Music programming language: Alda.
- Simple music editor: beepbox.
- Its more customizable fork: modbox.
- Jummbox: jummbox.
- The ultimate beepbox: ultrabox
- More complex online tool: AudioTool (login required).
- Not so online tool: DefleMask.
- A JS audio library: Howler.
- SunVox.
- ZzFX for sfx.
- ZzFXM - tiny music tracker.
- One-line music with Bytebeat.
- MusicLab Song Maker.
- FamiStudio is an attempt to make FamiTracker more accessable.
- Online music tracker: BassoonTracker.
- Sfx generator: sfxia.
- Online synth: Uhhyou.
- Generate music with code: Wavepot.
- List of VST plugins available for Linux.
Game Design
- Deepnight's great tutorials about tile-based games.
- How to come up with ideas for small games.
Physics
Engines
- Good old SDL 2.0. Here's a tutorial.
- Haxe with OpenFL.
- Finally, a Haxe engine I was looking for: Heaps (game base).
- Panda3D.
- Playground.js.
- Kontra.
- 8 Bit Workshop.
- raylib - pure and simple C library for way too many platforms.
- DragonRuby - pure and simple Ruby library.
- W - micro framework for WebGL2.
Animation
Misc
- JSON visualizer.
- Extreme JavaScript minifier.
- Regex testing tool: regexr.
- JavaScript GUI library for tinkering with parameters: dat.gui.
- Very in-depth book about PostgreSQL.
- D3 Graph Gallery.
- xterm colors.
- Car size comparison.
- Godot Icons index.
Learning resources
Music
- Learn music production with Abelton.
- Guitar chords.
- Classical music tabs.
- Musical key characteristics and emotions.
- Chord maps.
Drawing
- A couple of tutorials on colors and pixels (NSFW content nearby).
- Moar tutorials on pixeling.
- GIF pixel tutorials.