Is the word acampar the same in Brazilian and European Portuguese?

Yes

The word "acampar" is identical in both Brazilian and Continental Portuguese regarding its meaning, spelling, and grammatical rules. The only difference lies in pronunciation. Brazilian Portuguese tends to be more "syllable-timed," meaning vowels are pronounced more openly and clearly. In contrast, Continental Portuguese is more "stress-timed," leading to significant vowel reduction, where unstressed vowels are often shortened or almost swallowed, making the word sound more "clipped."

Brazilian Portuguese Examples

1. Nós vamos acampar no final de semana. (We are going to camp this weekend.)
2. Eu adoro acampar na beira do rio. (I love camping by the river.)
3. Eles decidiram acampar na floresta. (They decided to camp in the forest.)
4. Você quer acampar com a gente? (Do you want to camp with us?)
5. Eu estava acampando na montanha. (I was camping in the mountains.)

Continental Portuguese Examples

1. Nós vamos acampar no fim de semana. (We are going to camp this weekend.)
2. Adoro acampar junto ao rio. (I love camping by the river.)
3. Eles decidiram acampar na mata. (They decided to camp in the woods.)
4. Queres acampar connosco? (Do you want to camp with us?)
5. Eu estava a acampar na montanha. (I was camping in the mountains.)