BlobJump

MacOS:

1. - Download game

2. - Unpack file (built in programme or third-party programmes)

3. - Find the programme in the folder (idk)

4. - Enjoy and drink orange juice

Windows:

1. - Download game

2. - Open the exe-file

3. - Install

4. - Enjoy and drink chocolate

Linux:

1. - I don't know but a wise man said: "Every Linux user is a Linux pro."