Most recommended PK1 version. It's the most updated one and it has some bits of the official 2nd episode.

✔ PROS ✔

• It's more complete than the original PK1. It has bits of the 2nd episode and some new assets.

❌CONS❌

• It's not fully complete. It only includes 1 and a half episodes.

• It's outdated, and needs DosBox or other emulators to run it.
  
  

The Pekka Kana 1 version from 1998, by Antti Suuronen and Pistegamez.

✔ PROS ✔

• You can get it from the official Pistegamez webiste.

❌CONS❌

• It's incomplete. It only includes 1 episode.

• It's outdated, and needs DosBox or other emulators to run it.
  
  

Basically an online port of the PK1 Legacy version.

✔ PROS ✔

• You shouldn't need a DOS emulator to run it.

❌CONS❌

• You play on a small screen on Browser.

• Website might contain ads and probably isn't as safe as the official downloadable versions.