Regarding game crashing on PC, Mac & Linux Standalone

So yeah this is regarding game crashing on PC, Mac & Linux Standalone.

What happens is that I'll build my project, test/play it and sometimes it will crash during gameplay. For me personally, I think it is due to my hardware being kinda old.

What I'll do is restart my computer and try to reopen the game.exe but then I get an error message telling me that the game could not be launched and that I should contact the dev (being me in this case). It's like the game.exe gets corrupt all a sudden and I have to rebuild it or else I get the error message.

But, what if I send my game to someone else who doesn't have Unity Editor installed on his machine? Will he have to download the game again each time it crashes?