Game Developer

I am a game developer and I am wondering if I can include game contributions I was able to achieve in
Achievements, with grade levels(s) (e.g., "First Place: 11th, Most Improved: 10th") 

These are populars game on roblox, but I am not sure if I can as it doesnt fit the typical mold of a formal award

if not where can I put my game contributions in my application