ShaderGlass
Retro shaders on top of any Windows app
LIPSU DRAW
Alternative experimental painter
Aseprite Normal Toolkit
A collection of tools to aid with the creation of Normal Maps in Aseprite
Normal Shading for Aseprite
Normal Mapping for Aseprite
S4W - Scanlines for Windows
Adjustable Shaders, Scanlines , CRT, VHS effects, Bezels
All In 1 Sprite Shader for Unity - Demo
Unity Sprite Shader Asset Available at the Unity Asset Store
BJÖRTFX
BJÖRTFX - A CRT-like retro screen effect utility / tech demo
Background Warper (Earthbound BGs)
Image warping tool with Earthbound backgrounds to mess with.
Palette Swap - Shaders editor online
Shaders Effects (no code) and Palette editor + animation
Curve Gradient Generator
Generate gradients mask along curves and animate them in games
Eclipse Light Engine
A PBR light engine for GameMaker
Dark Comic Master Shader
Unity Comic-book shader for dramatic style
Colorize Tool for Ren'Py
Adjust in-engine recoloured images in real-time.
Unity BLUR Shader
FREE basic fast blur shader and script for Unity.
EarthBound Distortional Background Shader
An easy-to-use customizable shader to create your own animated backgrounds.
Universal Transition Shader
Most common transitions inside one Godot shader. 🎬
Normal Map Inspector (+ Aseprite & Krita plugins)
This pixelart tool makes drawing normal maps easy.
All In 1 VFX Toolkit for Unity - Demo
Best way to create VFX in Unity
Pixel Book Generator
Create Pixel Books
loveHRT
loveHRT (heuristic ray tube), fairly cheap, somewhat accurate, decently pretty CRT shader/upscaler
Screen Shaders (CopperCube extension)
An CopperCube extension that allows you to apply shaders to screen.
Outline System for Gamemaker 2.3+
Outline system for GMS2
Blur Shader Pack for Ren'Py
A collection of shaders that add support for different blur types