Play Commander Keen 1 4 7 and Dreams (Shareware) for free on your Android device!

Episode 2 3 5 and 6 can also be played when you copy them to your data directory (Check the readme file for details). You can get Episode 2 3 and 5 on Steam. Keen 6 is harder to get (ebay might help).

This app does not bring any games. When you start it you can get into an internal store where it downloads any Keen game for you (yes some original free ones remastered ones and fan mods; a lot to choose :-) ).

About Keen 7 (Part 1 of the unoffical Universe is toast trilogy):
http://www.shikadi.net/keenwiki/The_Keys_of_Krodacia

Sources can be downloaded from the developers' Site.

NOTE: About Reviewing and rating this product: If the game crashes please contact me instead of doing bad reviews. It helps much more. The developer group is active and helps solving any related issue. Remember this is a free product :-)