There is only 1 trainer, and it's for steam? when i open it, i get the steam trainer. so not sure what you are trying to open.
Make sure you have the correct title.
On CH, there are two "Galactic Civilizations 4". One is the old Galactic Civilizations 4 which has a trainer for only the epic version while the other is the newer Galactic Civilizations IV Supernova trainer which is only for steam. You might have selected the wrong one.
[Edited by Gangreenator, 5/14/2023 4:22:23 AM]
Please use the trainer option request system for requesting new options be added to this trainer and/or vote on options already requested.