Here is a short story about a player discovering how to use one.

A satisfying chime rang out. His treasury instantly jumped from negative 500 Deben to a staggering 10,000,000.

With his newfound, infinite wealth, Theo went to work. He didn't just rebuild the burned district; he upgraded it. He placed plazas, massive gardens, and high-end entertainment venues. He turned on "Instant Construction" and watched as a massive temple to Osiris materialized in a fraction of a second.

Theo launched the trainer first, and then booted up his game. A clean overlay appeared in the corner of his screen, listing a menu of digital miracles. He loaded his burning, bankrupt city and looked at the hotkeys: Infinite Deben (Money) Numpad 2: Max City Sentiment Numpad 3: Instant Construction Numpad 4: Empty All Storage Yards

Pharaoh: A New Era is a modern remake of the classic city-builder game, and a trainer is a third-party software program used to modify the game's code, effectively granting players cheats like unlimited money, instant construction, or god mode.