Egyszerűen játszunk.

Egyszerűen is an adverb. It comes from the adjective egyszerű = simple.

In this sentence, it usually means something like:

• simply
• in a simple way
• sometimes just / simply in a more idiomatic, emphatic sense

So it can describe how we play, or it can add the feeling of we simply play depending on context and intonation.

It is built from:

• egyszerű = simple
• -en = a common adverb-forming ending

So:

• egyszerű = simple
• egyszerűen = simply

This is similar to how English often adds -ly, although Hungarian does not use just one single adverb ending for every adjective.

Játszunk is the verb játszik = to play, in:

• present tense
• 1st person plural
• indefinite conjugation

So játszunk means:

• we play
• or, depending on context, we are playing

The ending -unk shows the subject is we.

Hungarian often leaves out subject pronouns because the verb ending already shows who the subject is.

So:

• játszunk already means we play
• you do not need to add mi = we

If you say Mi egyszerűen játszunk, that is still correct, but now mi adds emphasis, contrast, or clarity.

For example, it could sound like:

• We are simply playing.
  (not someone else)

It can mean either one. Hungarian present tense often covers both the English simple present and present continuous.

So depending on context, játszunk may mean:

• we play
• we are playing

Hungarian does not usually need a separate form like English are playing.

Hungarian word order is flexible, and it often shows emphasis rather than basic grammatical roles.

With Egyszerűen játszunk, the adverb comes first, so it gets some prominence. That can make the sentence feel like:

• We simply play
• We play in a simple way

If you changed the order, the emphasis could shift. For example:

• Játszunk egyszerűen is possible in some contexts, but it is less neutral and may sound more marked or like an afterthought.

So the given order is natural if you want egyszerűen to stand out a bit.

This is about Hungarian's two verb conjugations:

• indefinite conjugation
• definite conjugation

Játszunk is the indefinite form. It is used when:

• there is no direct object, or
• the object is indefinite / non-specific

Since the sentence does not mention a specific thing being played, játszunk is the natural form.

Játsszuk is the definite form, used when the verb has a definite object, for example:

• A játékot játsszuk. = We are playing the game.

So in Egyszerűen játszunk, játszunk is correct.

Yes. Játszik is a broad verb and can mean several kinds of play, depending on context, such as:

• playing a game
• playing for fun
• children playing
• actors performing / playing a role
• sometimes playing music, though Hungarian often uses more specific verbs for instruments too

So the exact sense of játszunk depends on the situation.

A rough guide for an English speaker:

• egyszerűen ≈ edj-se-rue-en
• játszunk ≈ yaa-tsoonk

A few important sound notes:

• j is like English y
• sz is like English s
• á is a long vowel, roughly like aa
• ű is a long rounded vowel with no exact English equivalent; it is similar to German ü
• tsz in játszunk gives a ts sound

Hungarian pronunciation is usually very consistent once you learn the letter values.

Yes, you could.

• Egyszerűen játszunk. = neutral, natural
• Mi egyszerűen játszunk. = adds emphasis to we

Adding mi is useful if you want contrast, for example:

• Ők dolgoznak, mi egyszerűen játszunk.
  They are working, we are simply playing.

So the pronoun is optional, not wrong.

Yes, it is grammatically complete.

However, in real conversation it may feel a little context-dependent, because egyszerűen often invites a nuance like:

• simply
• just
• plainly

So by itself, it can sound slightly emphatic or stylistically pointed. But it is still a valid and natural Hungarian sentence.