Umpire Simulator (itch)

Now on Steam with a VR and Non-VR version. http://store.steampowered.com/app/599070/Umpire_Simulator/

Umpire Simulator gives you the MLB umpire experience, tough calls at 75-105 mph. You'll be watching fastballs, curveballs, and sliders trying to make the right call. Not actually a sitting simulator because you will have to make calls. Use up to call a strike down to call a ball or click the buttons to make the calls. Compatible with mouse, keyboard, or gamepads.

This game features true to life fastballs and breaking balls at 74-104 mph.

The first time you start it will walk you through a tutorial to learn about calling pitches. If you already know the stike zone you can press escape to skip to the real game.

The gifs are only at 30 fps, so it will be easier to see the pitches when you run the game.