My favorite overall is probably Bridge Crew, because there’s nothing better than cruising around in the OG NCC-1701 Enterprise with your pals.
I also liked Elite Force when it came out, because it was crazy to see the 3D Trek environments even though they’re unimpressive by today’s standards. It even got me to watch Voyager.
Star Trek: Klingon Academy
You can get it on some abandonware sites nowadays, and there’s even a mod to send commands to the crew with your voice.
https://klingonacademy.com/