I've always found game assets to be the biggest hurdle. Sound effects, bg music, voicing character dialogue, character models, environment models... So finding resources like Freesound and TTSmp3 was huge. Just make sure to credit the original artist with their permission.
Viewing post in Good Luck To You! (From a Newbie) - Also, tips from Pros?
Because I've had 7 days, I've been trying to make every asset from scratch. Been learning Blender alongside Unity for asset models, and using SFXR to generate sounds (SFXR creator will get credited!). BG music is also mine, just threw together some simple rhythms in FL studio. I'm so friggin' tired! Haha