Long jams are a marathon, so here are free building blocks to save you a few weeks:
- Cozy UI Kit Lite: warm wood and parchment pixel art UI pieces
https://willosuna.itch.io/cozy-ui-kit-lite - Retro UI Kit Lite: arcade pixel art panels, buttons and bars
https://willosuna.itch.io/retro-ui-kit-lite - Magic Spells VFX Lite + SFX Lite: pixel art spell effects in 10 elements with matching sounds
https://willosuna.itch.io/magic-spells-vfx-lite - Pixel Pickups VFX Lite + SFX Lite: coins, gems, hearts and loot with matching sounds
https://willosuna.itch.io/pixel-pickups-sfx-lite - Essential UI SFX: 150 UI sounds (click, confirm, error, notify, coin, purchase...), 5 versions of each
https://willosuna.itch.io/essential-ui-sfx
Sounds come as WAV + OGG, graphics as transparent PNG. I made all of these myself, drawn and synthesized from code: no third-party art or samples. Free for commercial use; a credit to Willosuna is appreciated.
Good luck with the jam!