Technically yes, (it's a bit complicated since I didn't really design them for video games) but I don't really mind people using them for that, so if you or anyone runs into any problems let me know and I'll sort it out. However they should be Twitch safe and I think YouTube safe as well!
Just keep in mind this is the soundtrack, so this is just for casual listening. If you want to buy them for commercial use please check out the asset packs on my profile! Itch isn't very good at distinguishing the difference, but you can tell by looking under the "purchase" section and seeing if it says "asset pack" or "soundtrack"!