You mean this game?
https://daivuk.itch.io/quod
The author himself tells you that the 64kb executable is compressed/obfuscated, which often triggers antivirus alerts.
Try the uncompressed version that's also available.
NOTE: I'm not endorsing or confirming that this is a false positive. That depends on your judgment, but in computing, if something doesn't seem safe, it's best not to run it.
NOTE 2: Try using the Itch application, which allows you to run games in sandbox mode. This reduces the risk of your computer being infected or hacked (keep in mind that reducing the risk isn't the same as eliminating it entirely, so still be careful about what you open on your computer).
EDDIT:
I just sent the executable to Jotti and it's detected as a risky application by several antivirus programs. It's possible it's just a false positive, but I, personally (and I emphasize that this is my personal opinion), wouldn't run it on my computer.
