This game was exported in Flash and, as you probably know, Flash has been discontinued. As such, I can only provide access to the source code and the .swf file at the moment.
If you happen to have an ancient computer that still runs Flash in the browser, or a copy of the Adobe Flash Standalone Player, you should be able to run the game.
At some point I may port the game to JavaScript or similar, and it’s possible that the ruffle Flash emulator will get to a point where this game will run again. Let’s see.
Trolley Problem was written in ActionScript 3 using Adobe’s FlashBuilder 4.5 and the excellent Flixel library. It uses a sound effect I made in bfxr and the title track was made with WolframTones. The font in Trolley Problem is Commodore 64 Pixelized by Devin Cook.
You can read my writing about the game on my blog. Trolley Problem was written about on Alphr.
Trolley Problem has appeared in the exhibition The Games of Art at the QUT Creative Industries Precinct.