Thanks for playing! I'm glad you liked the atmosphere.
Mushrooms grow in the spring, too. ¯\_(ツ)_/¯ I associate them more with rainy weather, regardless of season. Probably could have added morels, which are more associated with the spring, but eh. Didn't think of that within the time limit.
Not sure I can do anything about the anti-virus, especially since I'm not running into any problems on either of my own computers. The .zip contains what Unity spits out + a .txt with the credits for the assets I didn't make.