This upgrade patch allows you to run Commander Keen 5 using version 1.4GT, which is useful for glitchless runs due to a fixed map error in Defense Tunnel Sorra ([see KeenWiki article for details](https://keenwiki.shikadi.net/wiki/Keen_5_Bugs#Trapped_Secret_Area)). It is distinguishable by a "BROUGHT TO YOU BY GOODTIMES SOFTWARE!" at the bottom of the initialization screen.

To upgrade: extract the files somewhere, then run the batch file. After upgrading, the extracted files can be deleted.

- The patcher will ask you for the current location of Keen5 files: you can copy-paste the location in the box without needing to navigate through the folder selection dialog.
- The patcher also assumes the executable is called **KEEN5E.EXE**, which may be incorrect depending on where your game comes from: simply rename the file beforehand. The batch file renames the file to **KEEN5.EXE** either way (which you can also freely rename afterwards).
- This patch is irreversible, so backup your original Keen5 files if you still want v1.4 available.

Upgrade Patch (1.4 -> 1.4GT)

CapnClever

Commander Keen 5: The Armageddon Machine

MS-DOS

Shiokazeninnotteminamikatta

Skyler774

Ro27

Easy

Normal

Hard

1.4GT

Difficulty is determined at the start of the run just after selecting "NEW GAME".

Difficulty

Game version number. This is indicated on the initialization screen.

Version

Difficulty selected when starting a new game.

Commander Keen

Official Discord Community Here!

100% with glitches?

Loading times

Coombs68

Muhahahahaz

hsblue

Calva04