Learn Farsi: این بازی سرنخ‌های بصری از قبیل نماد و تصویر دارد. - This game has visual clues such as symbols and pictures.

While both can be translated as "like" or "such as," az qabil-e (literally "from the tribe/category of") is slightly more formal and precise. It is used specifically to give examples that belong to a broader category. Here, it elegantly introduces symbols and pictures as specific types belonging to the category of "visual clues."

Could I use nazir-e instead of az qabil-e in this sentence?

Yes, absolutely. nazir-e and az qabil-e are virtually interchangeable in this context. Both are excellent B2-level tools for introducing specific examples of a broader class, and both require the Ezafe (the -e sound) connecting them to the noun phrase that follows.

Why are namād (symbol) and tasvir (picture) in the singular form, even though the English translation says "symbols and pictures"?

In Farsi, when you list categorical examples after phrases like az qabil-e or nazir-e, it is very common to use singular nouns. Farsi treats them as abstract concepts or categories (i.e., "the concept of a symbol" and "the concept of a picture") rather than specific countable items, whereas English naturally defaults to the plural.

What is the literal breakdown of the word for "clues" (sarnakh-hā)?

The singular word sarnakh is a great compound noun made of sar (head) and nakh (thread). Literally meaning "the head of the thread," it metaphorically translates to a "clue" or "lead"—the loose end you pull to unravel a mystery! The suffix simply makes it plural.