Wow.
I've just clocked over 1000 (1004) and I only started with the tail end of Alpha 16 (Neebs Gaming got me into it).
The only other game i've sunk that many hours into is EVE Online.
Well considering half my family is Portuguese, they (and every Portuguese person I've met, along with a few Brazilians I've met) have all stated that they are different enough to be classed as Portuguese and Brazilian-Portuguese, i'll take their word for it.
I'll class them as experts over you.
Actually, there are a number of differences between Portuguese and Brazilian ( A fact my Portuguese other half made me acutely aware of).
Here's a link to the basic differences.
https://www.livinglanguage.com/blog/2013/06/11/differences-in-brazilian-and-european-portuguese-and-tu-vs-voce/