No problem at all! We are excited to see how you’ll use the track in your game!
And yes, you can absolutely use our music in your game. The part in the license about the OST is only referring to redistributing the music as standalone audio files outside the game.
What we want to avoid is developers taking the tracks and releasing them separately as their game’s soundtrack (e.g., uploading them to Spotify/YouTube as “original music” or selling them as part of a standalone OST album).
As long as the music is used inside your game, you're completely within the license. You just can’t redistribute the tracks on their own.
Hope that clears things up, and feel free to ask if you need anything else!