you most likely used version 5AE to create a project of engine version 5.4, which is why I could not open the project
If you have it, can you try to open it? and tell me what version of the engine you use for this
I don't remember the engine version but to clarify, this is a packaged build, so you don't need to open it in the UE Editor. You should run it directly as a standalone game.
If you're having trouble with runing the game itself, it might be because some prerequisites aren't installed on your system. Try making sure you have:
- The latest DirectX Runtime
- The latest Microsoft Visual C++ Redistributables
- Up-to-date graphics drivers