Switch Catch (board only) is a ready-made Basys 3 FPGA game written in Verilog. It uses switches, LEDs, 7-segment, VGA. Play it free right in your browser - nothing to install, no FPGA board needed.
How to play
An LED lights: flip the switch right below it before the bar runs out (keys 0-9 toggle sw0-sw9, or click). Wrong or slow = lose a life. btnC starts.
What it uses
Verilog · switches, LEDs, 7-segment, VGA
The code: download the Verilog project (.zip) — read it, change it, and run your version with the free PC program.