Bitwright
Pixel art asset packs from Bitwright, the tool at bitwright.app where you describe a sprite and get one back.
Each pack is a complete set at one fixed size, with every file and the licence listed on its page. Packs drawn in Bitwright come with the source spec for every sprite, so you can recolour one or draw a new one that matches.
Bend light through mirrors and prisms to light every crystal before the water takes the room.
Puzzle
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35 pixel art kitchen and food icons, 32x32, with editable source specs
31 pixel art icons of ordinary modern things, 32x32, with editable source specs
30 animated pixel art planets with smooth rotation, perfect for space games, UI, and menus
20 chunky, colorful pixel art spaceships with animations.