The most frequent cause is a lack of sufficient permissions to access the game's memory.
: Ensure the trainer's architecture matches the game's. A 64-bit trainer will not detect a 32-bit game process. Troubleshooting Steps for Steam Deck/Linux fling trainer game not detected
If you are on Steam Deck, detection issues are often related to the Proton prefix Trainers won't run in game mode : r/SteamDeck The most frequent cause is a lack of
: Right-click both the trainer and the game executable (.exe) and select Run as Administrator . This gives the trainer the necessary permissions to scan and modify the game's memory. Correct Launch Order : Launch the game first. fling trainer game not detected