Godot Engine - Feature-packed 2D and 3D open source game engine.
Game Character Hub - helper program for game design (RPG Maker XP/VX and more)
RPG Paper Maker - Website
RPG Character Builder - Create thousands of unique character sprites for your 2D game project - free!
Construct 2 - Scirra Construct is a 2D game development engine with a focus on building games visually.
Universal LPC Spritesheet Character Generator - Powerful, animated character generator for creating 2D spritesheets