Using an outdated trainer on a newer game patch will either do nothing or crash the game. Reputable sources (like Cheat Happens) provide version-locked trainers.
Use the designated hotkeys (usually Numpad 1-9) to toggle the desired functions. You will typically hear a "Cheat Activated" audio cue. Benefits of Using a Trainer in Anno 2205 anno 2205 fling trainer
Below is a full, self-contained article. Using an outdated trainer on a newer game
The FLiNG trainer is a lightweight utility that modifies the game's memory in real-time, giving you access to "cheats" that can instantly solve your most pressing logistical headaches. It’s particularly popular for its stability and the variety of options it provides for both the city-building and combat mission segments of the game. Key Trainer Features anno 2205 fling trainer