https://github.com/drhelius/Gearcoleco/releases/tag/1.5.5
You'll need an emulator. Gearcoleco is what I personally use. Download the file, unzip it into the folder of your choice (I use C:/emulate/coleco), then put the games in the same folder. Run Gearcoleco, then press CTRL+O or select GearColeco/Open ROM from the options at the top of the screen, and finally select your game.
If Gearcoleco grumbles that you're missing a BIOS file, download "coleco.rom" and put it in the Gearcoleco folder. You should be all set.