Question about storage

I looked at the storage on my Mac recently, and saw that I only had 141.81 free out of 249.78 GB. It's mostly from downloading expansions to my games, but I'm concerned. Is that too much? Should I be worried, and stop downloading expansion packs? If not, when should I get worried about my storage?

Please someone help! I'm freaking out! Don't want my computer to go crazy because of not enough storage! Please

With hard drives it's always good to keep at least 20-30% free space always.

Buy a second hdd or ssd for it?

Get another HD dude. 250GB is not a lot of space.

Really? had no idea. Why is that?

Newer Operating Systems can handle lower than that better than older ones, but that's normally the golden rule so the OS and Apps have enough breathing space for caching, pagefiles etc.