A Collector's Edition for the PC version of the game was sold exclusively in Poland and it featured the following content:
- A black cardboard box with a print depicting a planet on the bottom half of the box, as well as the Mass Effect logo and the words "Edycji Kolekcjonerskiej" (Collector's Edition in Polish).
- A DVD box housing the English and Polish copies of the game, and a bonus DVD (possibly the same found in the Xbox 360 Limited Collector's Edition).
- A N7 t-shirt.
- An art book (possibly the same found in the Xbox 360 Limited Collector's Edition).
- A guide to the game in Polish.
- A mouse pad featuring the Normandy.
- Three postcards.
- A 2 GB USB flash drive with the Mass Effect logo printed on it.
- A blue lanyard with the Mass Effect logo repeated all over its length.
