GIMP
Official screenshots
GIMP provides layers, masks, selections, filters, scripting, and broad format support for scanned-art cleanup, texture finishing, and batch processing.
Why it’s here
It is free, cross-platform, and highly automatable, making it dependable for everyday image cleanup and conversion in a game art pipeline.
Best fit
Art, animation, audio, levels, and narrative turn mechanics into a believable world.
Before you commit
Its interface differs from Photoshop, while high-end prepress, some proprietary file interchange, and native animation workflows remain limited.