That badge only counts the games you've actually purchased. Demos and free-to-play titles don’t bump up the number.

Purchased games that are "Profile Limited" also don't count towards the 'games owned' badge.

Originally posted by Zyonッ:

games owned badge

Why do i have a 25+ games owned badge when i own 100+ games?

There are many games that don't count towards the badge regardless if you "paid" for them or not.

1. Nearly all Free2Play games don't count. Unless you paid to make it a premium license. This is different than the free for a limited time games.

2. Games removed by Valve don't count. https://steam.madjoki.com/apps/banned

3. There are also games that are in the "Learning" phase...

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1504975795

4. And also games with "Profile Features Limited..."

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1640772820

Here is a list of some free games you can add to your count...

https://steamhost.cn/steamcommunity_com/discussions/forum/0/3198119849662582773/?ctp=2#c3198119849665729751

Thank you!