מעולם לא ראיתי משחק כזה.

לא by itself just means not.
מעולם לא is a stronger expression meaning never or not ever.

So:

• לא ראיתי = I didn’t see / I have not seen
• מעולם לא ראיתי = I have never seen

A good way to think of מעולם לא is as a fixed expression meaning never in this kind of sentence.

Literally, מעולם comes from עולם, which can mean world or, in some contexts, eternity / long duration. In modern Hebrew, מעולם לא functions as an idiomatic expression meaning never.

So even if the literal pieces seem unusual, learners should usually memorize מעולם לא as one unit:

• מעולם לא... = never...

ראיתי is the 1st person singular past form of the verb לראות (to see).

So:

• ראיתי = I saw
• In many contexts, especially with מעולם לא, English often translates it as I have never seen

This is very common: Hebrew uses the past form where English may prefer the present perfect.

Because Hebrew verbs already show the person.

In ראיתי, the ending -תי tells you the subject is I.

So:

• ראיתי = I saw
• אני ראיתי = I saw, but with extra emphasis on I

Usually, the subject pronoun is omitted unless you want contrast or emphasis.

Because את is used before a definite direct object, not an indefinite one.

Here we have:

• משחק כזה = such a game / a game like that

This is indefinite, so there is no את.

Compare:

• ראיתי משחק כזה = I saw such a game
• ראיתי את המשחק הזה = I saw this game

The second one is definite, so it takes את.

In Hebrew, words like כזה usually come after the noun they describe.

So:

• משחק כזה = such a game / a game like that

This is natural Hebrew word order.

English says such a game, but Hebrew prefers game such.

This is similar to how many adjectives usually come after the noun in Hebrew.

כזה means such, like this, or like that, depending on context.

In משחק כזה, it means something like:

• such a game
• a game like this
• a game like that

It agrees with the noun in gender and number.

Since משחק is masculine singular, the sentence uses כזה.

כזה changes to match the noun.

Examples:

• masculine singular: משחק כזה = such a game
• feminine singular: חוויה כזאת = such an experience
• masculine plural: משחקים כאלה = such games
• feminine plural: חוויות כאלה = such experiences

So if the noun changes, כזה changes too.

Yes. That is also natural Hebrew.

Both mean I’ve never seen a game like this/that, but there is a slight difference in feel:

• מעולם לא = a bit more formal or literary
• אף פעם לא = very common in everyday speech

So both are correct, but מעולם לא may sound a little stronger or more polished.

Hebrew often places time/frequency expressions near the beginning of the sentence.

So the structure is:

• מעולם לא = never
• ראיתי = I saw / I have seen
• משחק כזה = such a game

This order is very natural. It puts emphasis early on the idea of never.

You could sometimes change word order for emphasis, but this version is the standard, natural one.

A natural pronunciation is:

me-olam lo ra-iti miskhak kaze

More carefully:

• מעולם = me-olam
• לא = lo
• ראיתי = ra-iti
• משחק = miskhak
• כזה = kaze

A version with vowels is:

מֵעוֹלָם לֹא רָאִיתִי מִשְׂחָק כָּזֶה

A rough stress guide:

• me-oLAM
• LO
• ra-I-ti
• misKHAK
• kaZE

Grammatically, ראיתי is a past form: I saw.

But in this sentence, English usually translates it as I have seen, because מעולם לא naturally matches the English present perfect:

• מעולם לא ראיתי משחק כזה = I have never seen such a game

So the Hebrew past tense often corresponds to English have seen in this kind of context.