اللعبة سهلة.

A common Levantine pronunciation is il-liʿbe sahle or el-leʿbe sahlé, depending on the region and how the speaker says short vowels.

A few helpful notes:

• الـ often sounds like il- or el- in Levantine.
• In اللعبة, the l sound is doubled, so it starts something like il-li...
• ع in لعبة is a throat sound that English does not have.
• The final ة in spoken Levantine usually sounds like -e or -eh, not like a full t.

So an approximate learner-friendly version is:

• il-liʿbe sahle

In Arabic, present-tense sentences like this usually do not use a verb meaning is.

So:

• اللعبة سهلة literally looks like the game easy
• but it means the game is easy

This is completely normal in both Levantine and Standard Arabic.

If you want past or future, then you do use a verb:

• اللعبة كانت سهلة = The game was easy
• اللعبة رح تكون سهلة = The game will be easy

Because Arabic normally places adjectives after the noun they describe.

So unlike English:

• English: an easy game
• Arabic: لعبة سهلة

In your sentence, سهلة comes after اللعبة because Arabic word order works that way.

Also, in اللعبة سهلة, سهلة is functioning as the predicate adjective:

• The game is easy

So even though English inserts is, Arabic simply puts the adjective after the noun.

Yes. لعبة is feminine, and سهلة agrees with it.

That is why you get:

• لعبة = feminine noun
• سهلة = feminine form of easy

The masculine form would be:

• سهل

So compare:

• اللعبة سهلة = feminine
• الامتحان سهل = masculine

The ending ة is a very common sign of feminine nouns and adjectives, though not every feminine word has it.

Because اللعبة سهلة and اللعبة السهلة mean different things.

• اللعبة سهلة = The game is easy
• اللعبة السهلة = the easy game

In other words:

• without ال on سهلة, it is the predicate of the sentence
• with ال on سهلة, it becomes a normal adjective directly modifying the noun

This is a very important difference in Arabic.

Because the noun starts with ل, and ل is one of the sun letters.

When the definite article الـ comes before a sun letter, the l of the article blends into the next consonant. So the pronunciation becomes doubled.

So:

• written: اللعبة
• pronounced: approximately il-liʿbe

You will hear the same thing with other sun letters too. The spelling stays the same, but the pronunciation changes.

That letter is ع (ʿayn), and it is one of the sounds English speakers usually find hardest.

A simple way to think about it:

• it is a voiced throat sound
• it does not have a direct English equivalent
• in Levantine, it may sound lighter than in very careful Standard Arabic pronunciation

If you are a beginner, do not worry if your ع is not perfect at first. Many learners start with an approximate version and improve over time.

In لعبة, the sound comes in the middle:

• liʿbe / leʿbe

You usually just say:

• اللعبة سهلة

That is the normal, natural way.

You can sometimes add هي, but it usually adds emphasis, contrast, or a slightly more deliberate tone:

• اللعبة هي سهلة، بس طويلة
  The game is easy, but long

So for a simple neutral sentence, leave هي out.

You would change the adjective to the masculine form:

• feminine: سهلة
• masculine: سهل

So for example:

• اللعبة سهلة
• الدرس سهل
• الفيلم سهل if you mean the movie is easy to understand

This is a basic agreement rule in Arabic: the adjective must match the noun in gender.