Inkscape
Built around SVG, Inkscape offers path editing, boolean operations, typography, and extensions for HUD elements, icons, logos, and promotional graphics.
Why use it
Vector source files make multi-resolution export and rapid iteration efficient for indies targeting both desktop and mobile.
Where it fits
Use art, animation, audio, levels, and narrative to make the game easy to read and its world convincing.
What to check
Engine support for advanced SVG features varies, so assets often need flattening, path conversion, or bitmap export before import.