Groups comparison

Classic Mac OS - 1984 to 2019
Games for Mac OS 9 or earlier.

Mac OS 1 (OS Classic 1;Mac System Software 1) - 1984 to 2004
Runs natively on the Original Mac System 1 and is supported by the developers/publishers on it.

Mac OS 2 (OS Classic 2;Mac System Software 2) - 1984 to 1988
Runs natively on Mac System 2 and is supported by the developers/publishers on it.

Mac OS 3 (OS Classic 3;Mac System Software 3) - 1984 to 1991
Runs natively on Mac System 3 and is supported by the developers/publishers on it.

Mac OS 4 (OS Classic 4;Mac System Software 4) - 1984 to 2003
Runs natively on Mac System 4 and is supported by the developers/publishers on it.

Mac OS 5 (OS Classic 5;Mac System Software 5) - 1984 to 2004
Runs natively on Mac System 5 and is supported by the developers/publishers on it.

Mac OS 6 (OS Classic 6) - 1984 to 2019
Runs natively on Mac OS 6 and is supported by the developers/publishers on it.

Mac OS 7 (OS Classic 7) - 1984 to 2019
Runs natively on Mac OS 7 and is supported by the developers/publishers on it.

Mac OS 8 (OS Classic 8) - 1984 to 2005
Runs natively on Mac OS 8 and is supported by the developers/publishers on it.

Mac OS 9 (OS Classic 9) - 1985 to 2007
Runs natively on Mac OS 9 and is supported by the developers/publishers on it.