Earning badges helps you gain XP and level your account. However, not all games will have badges. We plan on adding more badges over time, and Kartridge will help you find games with badges to help you earn achievements.
Each player's achievement panel will show Suggested games and activities that have achievements. This is accessible from any view in Kartridge.
If you want to find other games with badges, adjust the filters at the top of the Games browser tab.