Hi all! If you need audio for a 48-hour game, these are free and free for commercial use too:

Free chiptune sampler (NES-style loops + jingles, OGG + WAV, seamless loops): https://quillbit-type.itch.io/quillbit-chiptune-free-sampler

20 free retro UI and game SFX (menu, dialogue, coin, jump, hit): https://quillbit-type.itch.io/quillbit-blips-lite-20-free-retro-ui-game-sfx

20 free retro RPG SFX (magic, sword, level up, chest): https://quillbit-type.itch.io/quillbit-blips-rpg-lite-20-free-retro-rpg-sfx

Using Godot? Free add-on for music crossfades and jingles: https://quillbit-type.itch.io/quillbit-music-director

All made with AI assistance (disclosed on each page), which this jam's rules allow. The music sampler asks for a short credit line (it's on its page); the SFX need no credit. Good luck with Evolution!